Publications

Books

 

  1. I. Kaminer, A. Pascoal, E. Xargay, N. Hovakimyan, V. Cichella, V. Dobrokhodov, Time-Critical Cooperative Control of Autonomous Air Vehicles, Elsevier, ISBN: 9780128099469, 2017.
  2. N. Hovakimyan, C. Cao, L1 Adaptive Control Theory: Guaranteed Robustness with Fast Adaptation, Series: Advances in Design and Control, ISBN: 0898-71704-3, SIAM, Philadelphia, PA, 2010.

 

Papers in Edited Volumes

  1. A. Kirlik, K. Ackerman, B. Seefeldt, E. Xargay, K. Riddle, D. Talleur, R. Carbonari, L. Sha, N. Hovakimyan, Visualizing Automation in Aviation Interfaces, In Advances in Aviation Psychology, Vol. 2 (Eds. J.M. Flach, P. Tsang and M. Vidulich), Ashgate, 2016.
  2. V. Kulkarni, H. Jiang, E. Kharisov, N. Hovakimyan, M. Riedel, K. Parhi,  Synchronous Sequential Computations with Biomolecular Reactions. In V. Singh and P. Dhar (Ed.): Systems and Synthetic Biology Book, Springer Verlag, Netherlands, pp. 255-279, 2015.
  3. I. Kaminer, E. Xargay, V. Cichella, N. Hovakimyan, A. Pascoal, P. Aguiar, V. Dobrokhodov, R. Ghabcheloo, Time-Critical Cooperative Path Following of Multiple UAVs: Case Studies, In Advances in Estimation, Navigation, and Spacecraft Control – Itzhack Y. Bar-Itzhack Memorial Symposium (Eds.: D. Choukroun, Y. Oshman, J. Thienel, and M. Idan), Springer-Verlag, pp. 209-233, 2014.
  4. E. Xargay, N. Hovakimyan, V. Dobrokhodov, I. Kaminer, C. Cao, I. Gregory, L1 Adaptive Control in Flight. In Intelligent Systems. Series: AIAA Progress in Aeronautics and Astronautics, pp. 129-172, 2012.
  5. X. Wang, N. Hovakimyan, Performance Prediction in Uncertain Multi-Agent Systems Using L1 Adaptation-Based Distributed Event-Triggering. In Distributed Decision Making and Control. Series: Lecture Notes in Control and Information Sciences, Springer Verlag, pp. 171-193, 2011.
  6. D. M. Stipanović, A. Melikyan, N. Hovakimyan, Some Sufficient Conditions for Multi-Player Pursuit-Evasion Games with Continuous and Discrete Observations. In Advances in Dynamic Games and Applications, Series: Annals of the International Society of Dynamic Games, Vol. 10, pp. 133-145, 2009.
  7. A. Melikyan, and N. Hovakimyan, Some Variational Calculus Problems in Dynamic Games on 2D Surfaces, In Proceedings of ICM Millennium Lectures on Games, Editors: Petrosyan L., Yeung D., 287-296, 2003.
  8. P. Bernhard, N. Hovakimyan, Certainty Equivalence Principle and Minimax Team Problems. In Advances in Dynamic Games and Applications. Series: Annals of the International Society of Dynamic Games, Vol. 6, pp. 31-44, 2001.
  9. E. Altman, T. Basar, N. Hovakimyan, Worst-Case Rate-Based Flow Control with an ARMA Model of the Available Bandwidth. In Advances in Dynamic Games and Applications. Series: Annals of the International Society of Dynamic Games, Vol. 5, pp.3-29, 2000.
  10. N. Hovakimyan, L. Harutyunian, Game Problems on Rotation Surfaces. In Game Theory and Applications (Eds: L. A. Petrosjan et al.), vol. IV. New York, Nova Science Publishers, pp.62-74, 1998.

 

Journal Papers

    1. C. Tabasso, V. Cichella, S. B. Mehdi, T. Marinho, N. Hovakimyan, Time Coordination and Collision Avoidance Using Leader-Follower Strategies in Multi-Vehicle Missions, Robotics, 2021.
    2. S. Snyder, P. Zhao, N. Hovakimyan, L1 Adaptive Control for Linear Parameter-Varying Systems with Application to a VTOL Aircraft, Aerospace Science and Technology, 2021.
    3. D. Sun, H. Jafarnejadsani, N. Hovakimyan, Command Limiting for Aerial Vehicles with Rate Control Augmentation Systems, IEEE Transactions on Aerospace and Electronic Systems, vol. 57, 2021.
    4. Y. Mao, E. Akyol, N. Hovakimyan, Impact of Confirmation Bias on Competitive Information Spread in Social Networks, IEEE Transactions on Control of Network Systems, vol. 8, 2021.
    5. D. Sun, N. Hovakimyan, H. Jafarnejadsani, Design of Command Limiting Control Law using Exponential Potential Functions, AIAA Journal of Guidance, Control and Dynamics, vol. 44, No.2, pp. 441-448, 2021.
    6. V. Cichella, I. Kaminer, C. Walton, N. Hovakimyan, A. Pascoal, Optimal Multi-Vehicle Motion Planning using Bernstein Approximants, IEEE Transactions on Automatic Control, vol. 66, No.4, pp. 1453-1467, 2021.
    7. H. Lee, V. Cichella, N. Hovakimyan, L1 Adaptive Output Feedback for Non-Square Systems with Arbitrary Relative Degree, IEEE Transactions on Automatic Control, vol. 66, No. 2, pp. 895-901, 2021.
    8. C. Tabasso, V. Cichella, S. B. Mehdi, T. Marinho, N. Hovakimyan, Guaranteed Collision Avoidance in Multi-Vehicle Cooperative Missions using Speed Adjustment, AIAA Journal of Aerospace Information Systems, vol. 17, No. 18, pp. 1-18, 2020.
    9. Y. Mao, H. Jafarnejadsani, P. Zhao, E. Akyol, N. Hovakimyan, Novel Stealthy Attack and Defense Strategies for Networked Control Systems, IEEE Transactions on Automatic Control, vol. 65, No.9, pp. 3847 – 3862, 2020.
    10. A. Barbosa, N. Hovakimyan, N. Martin, Risk-Averse Optimization of Crop Inputs Using a Deep Ensemble of Convolutional Neural Networks, Computers and Electronics in Agriculture, vol. 178, article #105785, 2020.
    11. A. Barbosa, R. Trevisan, N. Martin, N. Hovakimyan, Modeling Yield Response to Crop Management Using Convolutional Neural Networks, Computers and Electronics in Agriculture, vol. 170, article #105197, 2020.
    12. N. Wan, D. Li, N. Hovakimyan, A Simplified Approach to Analyze Complementary Sensitivity Trade-offs in Continuous-Time and Discrete-Time Systems, IEEE Transactions on Automatic Control, vol. 65, No. 4, pp. 1697-1703, 2020.
    13. H. Jafarnejadsani, N. Wan, N. Hovakimyan, P. Voulgaris, A Multi-Level Sampled-Data Approach for Resilient Navigation and Control of Autonomous Systems, International Journal of Robust and Nonlinear Control, vol. 30, No.3, pp. 1071-1097, 2020.
    14. N. Wan, D. Li, N. Hovakimyan, Sensitivity Analysis of Continuous-time Linear Control Systems Subject to Control and Measurement Noise: An Information Theoretic Approach, Systems and Control Letters, vol. 133, article #104548, 2019.
    15. H.-J. Yoon, C. Widdowson, T. Marinho, R. Wang, N. Hovakimyan, Socially-Aware Path Planning for a Flying Robot in Close Proximity of Humans, ACM Transactions on Cyber-Physical Systems, Special issue on Human-Interaction-Aware Data Analytics for Cyber-Physical Systems, vol. 3, No. 4, Article No. 41 (24 pages), 2019.
    16. B. Mehdi, R. Choe, N. Hovakimyan, Collision Avoidance in Cooperative Missions: Bezier Surfaces for Circumventing Uncertain Speed Profiles, AIAA Journal of Guidance, Control and Dynamics, vol. 42, No. 8, pp. 1779-1796, 2019.
    17. H. Jafarnejadsani, H. Lee, N. Hovakimyan, An Adaptive Output Feedback Control for Sampled-Data Systems, Automatica, vol. 103, No.5, pp. 346-353, 2019.
    18. X. Wang, N. Hovakimyan, L. Sha, RSimplex: A Robust Control Architecture against Cyber and Physical Failures, ACM Transactions on Cyber-Physical Systems, vol. 2, No. 4, Article No. 27 (26 pages), 2018.
    19. H. Lee, S. Snyder, N. Hovakimyan, L1 Adaptive Output Feedback Augmentation for Missile Systems, IEEE Transactions on Aerospace and Electronic Systems, vol. 54, No. 2, pp. 680-692, 2018.
    20. V. Cichella, I. Kaminer, C. Walton, N. Hovakimyan, Optimal Motion Planning for Differentially Flat Systems using Bernstein Approximation, IEEE Control Systems Letters, vol. 2, No. 1, pp. 181-186, 2018.
    21. V. Cichella, T. Marinho, D. Stipanovic, N. Hovakimyan, I. Kaminer, A. Trujillo, Collision Avoidance Based on Line-of-Sight Angle: Guaranteed Safety using Low-Cost Sensors, Journal of Intelligent and Robotic Systems, No.89, pp. 139-153, 2018.
    22. S. B. Mehdi, R. Choe, N. Hovakimyan, Piecewise Bézier Curves for Avoiding Collisions during Multi-Vehicle Coordinated Missions, AIAA Journal of Guidance, Control and Dynamics, vol. 40, No. 7, pp. 1567-1578, 2017.
    23. H. Jafarnejadsani, D. Sun, H. Lee, N. Hovakimyan, Optimized L1 Adaptive Controller for Trajectory Tracking of an Indoor Quadrotor, AIAA Journal of Guidance, Control and Dynamics, vol. 40, No. 6, pp. 1415-1427, 2017.
    24. K. Ackerman, E. Xargay, R. Choe, N. Hovakimyan, M. C. Cotting, R. B. Jeffrey, M. P. Blackstun, T. P. Fulkerson, T. R. Lau, S. S. Stephens,  Evaluation of an L1 Flight Control Law on Calspan’s Variable-Stability Learjet, AIAA Journal of Guidance, Control and Dynamics, vol. 40, No. 4, pp. 1051-1060, 2017.
    25. H. Lee, S. Snyder, N. Hovakimyan, L1 Adaptive Control within a Flight Envelope Protection System, AIAA Journal of Guidance, Control and Dynamics, vol. 40, No. 4, pp. 1013-1026, 2017.
    26. K. Ackerman, D. Talleur, R. Carbonari, E. Xargay, B. Seefeldt, A. Kirlik, N. Hovakimyan, A. Trujillo, Automation Situation Awareness Display for a Flight Envelope Protection System, AIAA Journal of Guidance, Control and Dynamics, vol. 40, No. 4, pp. 964-980, 2017.
    27. N. Tekles, J. Chongvisal, E. Xargay, R. Choe, D. Talleur, N. Hovakimyan, Design of a Flight Envelope Protection System for NASA’s Transport Class Model, AIAA Journal of Guidance, Control and Dynamics, vol. 40, No. 4, pp. 863-877, 2017.
    28. Z. Li, N. Hovakimyan, G.-O. Kaasa, C. Cao, Bottom Hole Pressure Estimation and L1 Adaptive Control in Managed Pressure Drilling Systems, International Journal of Adaptive Control and Signal Processing, vol. 31, No. 4, pp. 545-561, 2017.
    29. S. Bhattacharya, T. Basar, N. Hovakimyan, Game-Theoretic Analysis of a Visibility-based Pursuit-Evasion Game with a Circular Obstacle, Journal of Optimization Theory and Applications, vol. 171, No.3, pp. 1071-1082, 2016.
    30. T. Marinho, W. Christopher, A. Oetting, A. Lakshmanan, H. Cui, N. Hovakimyan, R. Wang, A. Kirlik, A. LaViers, D. Stipanovic, Carebots: Prolonged Elderly Independence using Small Mobile Robots, ASME Dynamic Systems and Control Magazine, Special Issue on Health Care Engineering, vol. 138, No.9, pp. 8-13, 2016.
    31. R. Choe, J. P. Navarro, V. Cichella, E. Xargay, N. Hovakimyan, Cooperative Trajectory Generation using Pythagorean Hodograph Bezier Curves, AIAA Journal of Guidance, Control and Dynamics, vol. 38, No. 8, pp. 1744-1763, 2016.
    32. V. Cichella, R. Choe, S. B. Mehdi, E. Xargay, N. Hovakimyan, V. Dobrokhodov, I. Kaminer, A. Pascoal, P. Aguiar, Safe Coordinated Maneuvering of Teams of Multirotor UAVs: A Cooperative Control Framework for Multi-Vehicle Time-Critical Missions, IEEE Control Systems Magazine, vol. 36, No. 4, pp. 59-82, 2016.
    33. H. Mahdianfar, N. Hovakimyan, A. Pavlov, O. M. Aamo, Adaptive Output Regulator Design with Application to Managed Pressure Drilling, Journal of Process Control, vol. 42, pp. 1-13, 2016.
    34. R. Choe, E. Xargay, N. Hovakimyan, L1 Adaptive Control for a Class of Uncertain Nonaffine-in-Control Nonlinear Systems, IEEE Transactions on Automatic Control, vol. 61, No.3, pp. 840-846, 2016.
    35. Z. Zuo, V, Cichella, M. Xu, N. Hovakimyan, Three-Dimensional Coordinated Path-Following Control for Second-Order Multi-Agent Networks, Journal of Franklin Institute, vol. 352, No. 9, pp. 3852-3872, 2015.
    36. X. Wang, E. Kharisov, N. Hovakimyan, Real-Time Adaptive Control for Uncertain Networked Control Systems, IEEE Transactions on Automatic Control, vol. 60, No. 9, pp. 2500-2505, 2015.
    37. V. Cichella, I. Kaminer, V. Dobrokhodov, E. Xargay, R. Choe, N. Hovakimyan, P. Aguiar, A. Pascoal, Cooperative Path-Following of Multiple Multirotors over Faulty Networks, IEEE Transactions on Automation Science and Engineering, vol. 12, No.3, pp. 945-957, 2015.
    38. V. Kulkarni, E. Kharisov, N. Hovakimyan, J. Kim,  Load Capacity Improvements in Nucleic Acid Based Systems Using Partially Open Feedback Control, ACS Synthetic Biology (IWBDA Special Issue), vol. 3, No. 8, pp 617–626, 2014.
    39. E. Kharisov, N. Hovakimyan, K. Astrom, Comparison of Architectures and Robustness of MRAC and L1 Adaptive Controllers, International Journal of Adaptive Control and Signal Processing, Special issue “Simple and Robust Adaptive Control”, vol. 28, No.7-8, pp. 633-663, 2014.
    40. E. Xargay, R. Choe, N. Hovakimyan, I. Kaminer, Multi-Leader Coordination Algorithm for Networks with Switching Topology and Quantized Measurements, Automatica, vol. 50, No. 3, pp. 841-851, 2014.
    41. K.-K. Kim, N. Hovakimyan, Multi-Criteria Optimization for Filter Design of L1 Adaptive Control, Journal of Optimization Theory and Applications, vol. 161, No. 2, pp. 557 -581, 2014.
    42. E. Xargay, I. Kaminer, A. Pascoal, N. Hovakimyan, V. Dobrokhodov, V. Cichella, A. Aguiar, R. Ghabcheloo, Time-Critical Cooperative Path Following of Multiple UAVs over Time-Varying Networks, AIAA Journal of Guidance, Control and Dynamics, Vol. 36, No. 2, pp. 499-516, 2013.
    43. D. Li, N. Hovakimyan, Positive Invariant Set for L1 Adaptive Controller in the Presence of Input Saturation, International Journal of Adaptive Control and Signal Processing, vol. 27, No. 11, pp. 1012-1030, 2013.
    44. X. Wang, N. Hovakimyan, Distributed Control of Uncertain Networked Control Systems: A Decoupled Design, IEEE Transactions on Automatic Control, vol. 58, No.10, pp. 2536-2549, 2013.
    45. D. Li, N. Hovakimyan, Bode-like Integral for Continuous-Time Closed-Loop Systems in the Presence of Limited Information, IEEE Transactions on Automatic Control, vol. 58, No.6, pp. 1457-1469, 2013.
    46. V. Dobrokhodov, E. Xargay N. Hovakimyan, I. Kaminer, C. Cao, I. Gregory, Multicriteria Analysis of an  Adaptive Flight Control System, Proceedings of the Institution of Mechanical Engineers, Part I, Journal of Systems and Control Engineering, vol. 227, No. 4, pp.413-427, 2013.
    47. L. Ma, N. Hovakimyan, Vision-Based Cyclic Pursuit for Cooperative Target Tracking, AIAA Journal of Guidance, Control and Dynamics, vol. 35, No.2, pp. 617-622, 2013.
    48. D. Li, N. Hovakimyan, Bode-Like Integral for Stochastic Switched Systems in the Presence of Limited Information, Automatica, vol. 49, No.1, pp. 1-8, 2013.
    49. E. Xargay, V. Dobrokhodov, I. Kaminer, A. Pascoal, N. Hovakimyan, C. Cao, Time-Critical Cooperative Control of Multiple Autonomous Vehicles, IEEE Control Systems Magazine, pp. 49-73, October, 2012.
    50. X. Wang, Y. Sun, N. Hovakimyan, Asynchronous Task Execution in Decentralized Event-Triggered Networked Control Systems, Systems and Control Letters, vol. 61, No. 9, pp. 936-944, 2012.
    51. X. Wang, N. Hovakimyan, L1 Adaptive Controller for Nonlinear Time-Varying Reference Systems, Systems and Control Letters, vol. 61, No. 4, pp. 455-463, 2012.
    52. H. Sun, N. Hovakimyan, T. Basar, L1 Adaptive Controller for Uncertain Nonlinear Multi-Input Multi-Output Systems with Input Quantization, IEEE Transactions on Automatic Control, vol. 57, No. 1, pp. 565-578, 2012.
    53. N. Hovakimyan, C. Cao, E. Kharisov, E. Xargay, I. Gregory, L1 Adaptive Controller for Safety-Critical Systems: Guaranteed Robustness with Fast Adaptation, IEEE Control Systems Magazine, pp. 54-104, October 2011.
    54. V. Dobrokhodov, I. Kaminer, I. Kitsios, E. Xargay, N. Hovakimyan, C. Cao, I. Gregory, L. Valavani, Experimental Validation of L1 Adaptive Control:  Rohrs’ Counterexample in Flight, AIAA Journal of Guidance, Control and Dynamics, vol. 34, No. 5, pp.1311-1328, 2011.
    55. V. Kulkarni, A. Paranjape, K. R. Ghusinga, N. Hovakimyan, Synthesis of Robust Tunable Oscillators using Mitogen Activated Protein Kinase Cascades, Systems and Synthetic Biology, vol. 4, No. 4, pp. 331-341, 2010.
    56. S.-J. Yoo, N. Hovakimyan, C. Cao, Decentralized L1 Adaptive Control for Large-scale Nonlinear Systems with Interconnected Unmodelled Dynamics, IET Control Theory and Applications, vol. 4, No.10, pp. 1972-1988, 2010.
    57. L. Ma, C. Cao, N. Hovakimyan, V. Dobrokhodov, I. Kaminer, Adaptive Vision-Based Guidance Law with Guaranteed Performance Bounds for Tracking a Ground Target with Time-Varying Velocity,  AIAA Journal of Guidance, Control and Dynamics, vol. 33, No. 3, pp. 834-852,  2010.
    58. D. Stipanović, A. Melikyan, N. Hovakimyan, Guaranteed Strategies for Nonlinear Multi-Player Pursuit-Evasion Games, International Game Theory Review, vol. 12, No. 1, pp. 1-17, 2010.
    59. L. Ma, C. Cao, N. Hovakimyan, C. Woolsey, W. Dixon, Fast Estimation for Range Identification in the Presence of Unknown Motion Parameters, IMA Journal of Applied Mathematics, pp. 1-25, 2010.
    60. I. Kaminer, A. Pascoal, E. Xargay, C. Cao, N. Hovakimyan, V. Dobrokhodov, 3D Path Following for Small UAVs using Commercial Autopilots Augmented by L1 Adaptive Control, AIAA Journal of Guidance, Control and Dynamics, vol. 33, No. 2, pp. 550-564, 2010.
    61. C. Cao, N. Hovakimyan, Stability Margins of L1 Adaptive Control Architecture, IEEE Transactions on Automatic Control, vol. 55, No. 2, pp. 480-487, 2010.
    62. J. Wang, N. Hovakimyan, C. Cao, Verifiable Adaptive Flight Control: UCAV and Aerial Refueling, AIAA Journal of Guidance, Control and Dynamics, vol. 33, No. 1, pp. 75-87, 2010.
    63. C. Cao, N. Hovakimyan, J. Evers, Active Control of Visual Sensor for Navigation and Guidance, Journal of Computational Management Science, Springer Operation Research and Decision Theory, No. 7, pp. 85-110, 2010.
    64. A. Dippold, L. Ma, N. Hovakimyan, Vision-Based Obstacle Avoidance of Wheeled Robots Using Fast Estimation, AIAA Journal of Guidance, Control and Dynamics, vol. 32, No. 6, pp. 1931-1937, 2009.
    65. C. Cao, N. Hovakimyan, L1 Adaptive Output Feedback Controller for Non-Strictly Positive Real Systems: Missile Longitudinal Autopilot Design, AIAA Journal of Guidance, Control and Dynamics, vol. 32, No. 3, pp. 717-726, 2009.
    66. V. Patel, C. Cao, N. Hovakimyan, K. Wise, E. Lavretsky, L1 Adaptive Controller for Tailless Unstable Aircraft in the Presence of Unknown Actuator Failures, International Journal of Control, vol. 82, No. 4, pp. 705-720, 2009.
    67. C. Cao, N. Hovakimyan, A Low-pass Adaptive Control Design with Improved Transient Performance, Journal of Computational Management Science, Springer Operation Research and Decision Theory, 2008.
    68. N. Hovakimyan, E. Lavretsky, C. Cao, Dynamic Inversion for Multivariable Nonaffine-in-Control Systems via Time-Scale Separation, International Journal of Control, vol. 81, No.12, pp. 1960-1967, 2008.
    69. N. Hovakimyan, E. Lavretsky, C. Cao, Adaptive Dynamic Inversion for Nonaffine-in-Control Systems via Time-Scale Separation, IEEE Transactions on Neural Networks, vol. 19, No.10, pp. 1702-1711, 2008.
    70. C. Cao, N. Hovakimyan, Vision-based Tracking using Intelligent Excitation, International Journal of Control, vol. 81, No.11, pp. 1763-1778, 2008.
    71. C. Cao, N. Hovakimyan, L1 Adaptive Controller for Systems with Unknown Time-varying  Parameters  and Disturbances in the Presence of Non-zero Trajectory Initialization Error, International Journal of Control, vol. 81, No. 7, pp. 1148-1162, 2008.
    72. C. Cao, N. Hovakimyan, L1 Adaptive Output Feedback Controller for Systems of Unknown Dimension, IEEE Transactions on Automatic Control, vol. 53, No. 3, pp. 815-821, 2008.
    73. C. Cao, N. Hovakimyan, Design and Analysis of a Novel L1 Adaptive Control Architecture with Guaranteed Transient Performance, IEEE Transactions on Automatic Control, vol.53, No.2, pp. 586-591, 2008.
    74. J. Wang, V. Patel, C. Cao, N. Hovakimyan, E. Lavretsky, Novel L1 Adaptive Control Methodology for Aerial Refueling with Guaranteed Transient Performance, AIAA Journal of Guidance, Control and Dynamics, vol. 31, No. 1, pp. 182-193, 2008.
    75. T. Hayakawa, W. Haddad, N. Hovakimyan, Neural Network Adaptive Control for Nonlinear Uncertain Dynamical Systems with Asymptotic Stability Guarantees, IEEE Transactions on Neural Networks, vol. 19, No. 1, pp. 80-89, 2008.
    76. V. Stepanyan, N. Hovakimyan, Visual Tracking of a Maneuvering Target, AIAA Journal of Guidance, Control and Dynamics, vol. 31, No. 1, pp. 66-80, 2008.
    77. E. Lavretsky, N. Hovakimyan, Adaptive Dynamic Inversion for Nonaffine in Control Uncertain Systems via Time-Scale Separation: Part 2, Journal of Dynamical Systems and Control, vol. 14, No. 1, pp. 33-41, 2008.
    78. N. Hovakimyan, E. Lavretsky, A. Sasane, Approximate Dynamic Inversion for Nonaffine in Control Systems via Time-Scale Separation: Part 1, Journal of Dynamical Systems and Control, vol. 13, No. 4, pp. 451-465, 2007.
    79. A. Young, C. Cao, V. Patel, N. Hovakimyan, E. Lavretsky, An Adaptive Approach to Nonaffine Control Design for Aircraft Applications, AIAA Journal of Guidance, Control and Dynamics, vol. 30, No. 6, pp. 1770-1782, 2007.
    80. A. Melikyan, A. Akhmetzhanov and N. Hovakimyan, On Initial Value and Terminal Value Problems for Hamilton-Jacobi Equation, Systems and Control Letters, vol. 56, No.11-12, pp. 714-721, 2007.
    81. E. Lavretsky, N. Hovakimyan, Positive mu-modification for Stable Adaptation in the Presence of Input Constraints, Systems and Control Letters, vol. 56, No.11-12, pp. 722-729, 2007.
    82. V. Stepanyan, N. Hovakimyan, Robust Adaptive Observer Design for Uncertain Systems with Bounded Disturbances, IEEE Transactions on Neural Networks, vol. 18, No. 5, pp. 1392-1403, 2007.
    83. C. Cao, N. Hovakimyan, J. Wang, Intelligent Excitation for Adaptive Control with Unknown Parameters in Reference Input, IEEE Transactions on Automatic Control, vol. 52, No.8, pp. 1525-1532, 2007.
    84. C. Cao, N. Hovakimyan, Novel L1 Neural Network Adaptive Control Architecture with Guaranteed Transient Performance, Special Issue on Feedback Control of IEEE Transactions on Neural Networks, vol. 18, No. 4, pp. 1160-1171, 2007.
    85. W. Haddad, J. Bailey, T. Hayakawa, N. Hovakimyan, Neural Network Adaptive Output Feedback Control for Intensive Care Unit Sedation and Operating Room Hypnosis, Special Issue on Feedback Control of IEEE Transactions on Neural Networks, vol. 18, No. 4, pp. 1049-1066, 2007.
    86. V. Stepanyan, N. Hovakimyan, An Adaptive Disturbance Rejection Controller for Visual Tracking of a Maneuvering Target, AIAA Journal of Guidance, Control and Dynamics, vol. 30, No. 4, pp. 1090-1106, 2007.
    87. E. Lavretsky, N. Hovakimyan, Stable Adaptation in the Presence of Multiple Actuator Constraints with Applications to Flight Control, AIAA Journal of Guidance, Control and Dynamics, vol. 30, No. 2, pp. 337-345, 2007.
    88. N. Hovakimyan, E. Lavretsky, A. Calise, R. Sattigeri, Decentralized Adaptive Output Feedback Control via Input/Output Inversion, International Journal of Control, vol. 79, No. 12, pp. 1538-1551, 2006.
    89. B. B. King, N. Hovakimyan, K. Evans, M. Buhl, Reduced Order Controllers for Distributed Parameter Systems: LQG Balancing and an Adaptive Approach, Special Issue of Mathematical and Computer Modeling for the 50th anniversary of AFOSR, vol. 43, No.9-10, pp. 1136-1149, 2006.
    90. N. Hovakimyan, B.-J. Yang, A. Calise, Robust Adaptive Output Feedback Control Methodology for Multivariable Non-Minimum Phase Nonlinear Systems, Automatica, vol. 42, No.4, pp. 513-522, 2006.
    91. N. Hovakimyan, E. Lavretsky, B.-J. Yang, A. Calise, Coordinated Decentralized Adaptive Output Feedback for Control of Interconnected Systems, IEEE Transactions on Neural Networks, vol.16, No.1, pp.185-194, 2005.
    92. T. Hayakawa, W. Haddad, J. Bailey, N. Hovakimyan, Passivity-Based Neural Network Adaptive Output Feedback Control for Nonlinear Nonnegative Dynamical Systems. IEEE Transactions on Neural Networks, vol.16, No.2, pp. 387-398, 2005.
    93. T. Hayakawa, W. Haddad, N. Hovakimyan, V. Chellaboina, Neural Network Adaptive Control for Nonlinear Nonnegative Dynamical Systems, IEEE Transactions on Neural Networks, vol.16, No.2, pp. 399-413, 2005.
    94. A. Kutay, A. Calise, M. Idan, N. Hovakimyan, Experimental Results on Adaptive Output Feedback Control using Laboratory Model Helicopter. IEEE Transactions on Control Systems Technology, vol. 13, No. 2, pp. 196-202, 2005.
    95. N. Hovakimyan, A. Calise, N. Kim, “Adaptive Output Feedback Control of Uncertain Multi-Input Multi-Output Systems Using Single Hidden Layer Neural Networks, International Journal of Control, vol. 77, No. 15, pp.1318-1329, 2004.
    96. M. Idan, A. Calise, N. Hovakimyan, An Adaptive Output Feedback Control Methodology: Theory and Practical Implementation Aspects, AIAA Journal of Guidance, Control and Dynamics, vol. 27, No.4, pp. 710-715, 2004.
    97. A. Melikyan, N. Hovakimyan, Some Variational Calculus Problems in Dynamic Games on 2D Surfaces, In Proceedings of International Congress of Mathematicians, Satellite Conference in Game Theory and Applications, China, 2002.
    98. E. Lavretsky, N. Hovakimyan, A. Calise, Upper Bounds for Approximation of Continuous-Time Dynamics Using Delayed Outputs and Feedforward Neural Networks, IEEE Transactions on Automatic Control, vol. 48, No.9, pp.1606-1610, 2003.
    99. N. Kim, A. Calise, N. Hovakimyan, J.V.R. Prasad, E. Corban, Adaptive Output Feedback for High-Bandwidth Control of an Unmanned Helicopter, AIAA Journal of Guidance, Control and Dynamics, vol.25, No.6, pp. 993-1002, 2002.
    100. N. Hovakimyan, F. Nardi, A. Calise, N. Kim, Adaptive Output Feedback Control of Uncertain Systems using Single Hidden Layer Neural Networks. IEEE Transactions on Neural Networks, vol.13, No.6, pp.1420-1431, 2002.
    101. N. Hovakimyan, F. Nardi, A. Calise, A Novel Error Observer based Adaptive Output Feedback Approach for Control of Uncertain Systems. IEEE Transactions on Automatic Control, vol. 47, No.8, pp.1310-1314, 2002.
    102. N. Hovakimyan, F. Nardi, A. Calise, H. Lee, Adaptive Output Feedback Control of a Class of Nonlinear Systems using Neural Networks. International Journal of Control, Vol.74, No.12, pp.1161-1169, 2001.
    103. A. Calise, N. Hovakimyan, M. Idan, Adaptive Output Feedback Control of Nonlinear Systems using Neural Networks. Automatica Special issue “Neural Networks for Feedback Control”, Vol.37, No.8, pp.1201-1211, 2001.
    104. N. Hovakimyan, R. Rysdyk, A. Calise, Dynamic Neural Networks for Output Feedback Control. International Journal of Robust and Nonlinear Control. Vol.11, No.1, pp.23-39, 2001.
    105. N. Hovakimyan, A Note on Taking Full Advantage of Feedback Linearization for Adaptive Output Feedback Control. Abstracts Journal of American Mathematical Society, vol.21, No.4, p. 642, 2000.
    106. N. Hovakimyan, A. Melikyan, Geometry of Pursuit-Evasion on Second-Order Rotation Surfaces. Dynamics and Control, vol.10, pp.297-312, 2000.
    107. N. Hovakimyan, L. Harutunian, Game problems on rotation surfaces. Int. J. Math. Game Theory Algebra 9, No.2, pp.117—129, 1999.
    108. P. Bernhard, N. Hovakimyan, Nonlinear Robust Control and Minimax Team Problems. International Journal of Robust and Nonlinear Control. Vol.9, pp.239-257, 1999.
    109. A. Melikyan, N. Hovakimyan, L. Harutiunian, Games of Simple Pursuit and Approach on Two-Dimensional Cone. JOTA, vol.98, No.3, pp.515-543, 1998.
    110. V. Avetisyan, N. Hovakimyan, Constructing the Regions of Admissible States of Positioning for a Two-Link Manipulator with Account of Speed Constraints. J. Comp. & Syst. Sci., No.4, pp.638-646, 1997.
    111. J. Argyris, V. Belubekyan, N. Hovakimyan, M. Minasyan, Chaotic Vibrations of Nonlinear Viscoelastic Beam. Chaos, Solitons and Fractals, Vol.7, No.2, pp.151-163, 1996.
    112. V. Avetisyan, N. Hovakimyan, Optimal Plane Motions of Two-link Manipulator. J. Comp. & Syst. Sci., No.2, pp.161-168, 1995.
    113. A. Melikyan and N. Hovakimyan, A Differential Game of Simple Approach in Manifolds. J. Appl. Maths Mechs, Vol.57, No.1, pp.47-57, 1993.
    114. N. Hovakimyan, Geometrical Properties of Optimal Trajectories in the Game Problem of Simple Pursuit in Plane in the Presence of Obstacle. Scientific Notes of Yerevan State University, No.1, pp.32-39, 1991. (Erevan. Gos. Univ. Uchen. Zap. Estestv. Nauki 1991, No.1(176), as provided by American Mathematical Society).
    115. A. Melikyan and N. Hovakimyan, Game Problem of Simple Pursuit on a Two-Dimensional Cone. J. Appl. Maths Mechs, Vol.55, No.5, pp.607-618, 1991.
    116. A. Melikyan and N. Hovakimyan, Singular Trajectories in the Game of Simple Pursuit in the Manifolds. J. Appl. Maths. Mechs, Vol.55, No.1, pp.42-48, 1991.

 Conference papers

 

2021

 

  1. H.-J. Yoon, H. Kim, K. Shrestha, N. Hovakimyan, P. Voulgaris, Estimation and Planning of Exploration Over Grid Map Using a Spatiotemporal Model with Incomplete State Observations, In Proceedings of 5th IEEE Conference on Control Technology and Applications, San Diego, CA.
  2. S. Dadsetan, D. Pichler, D. Wilson, N. Hovakimyan, J. Hobbs, Superpixels and Graph Convolutional Neural Networks for Efficient Detection of Nutrient Deficiency Stress from Aerial Imagery, In Proceedings of IEEE/CVF Conference on Computer Vision and Pattern Recognition, 2021.
  3. G. B. Haberfeld, A. Gahlawat, N. Hovakimyan, Safe Sampling-Based Air-Ground Rendezvous Algorithm for Complex Urban Environments, In Proceedings of International Conference on Unmanned Aircraft Systems, 2021.
  1. A. Gahlawat, A. Lakshmanan, L. Song, A. Patterson, Z. Wu, N. Hovakimyan, E. Theodorou, RL1-GP: Safe Simultaneous Learning and Control, In Proceedings of 3rd Learning for Dynamics and Control Conference, 2021.
  2. S. Dadsetan, G. Rose, N. Hovakimyan, J. Hobbs, Detection and Prediction of Nutrient Deficiency Stress using Longitudinal Aerial Imagery, In Proceedings of NVIDIA GPU Technology Conference, 2021.
  3. H. Kim, W. Wan, N. Hovakimyan, L. Sha, P. Voulgaris, Robust Vehicle Lane Keeping Control with Networked Proactive Adaptation, In Proceedings of American Control Conference, New Orleans, LA, 2021.
  4. M. Amrouche, T. Marinho, D. Stipanovic, V. Cichella, N. Hovakimyan, Biologically Inspired Collision Avoidance without Distance Information, In Proceedings of American Control Conference, New Orleans, LA, 2021.
  5. N. Wan, A. Gahlawat, N. Hovakimyan, E. Theodorou, P. Voulgaris, Cooperative Path Integral Control for Stochastic Multi-Agent Systems, In Proceedings of American Control Conference, New Orleans, LA, 2021.
  6. L. Song, N. Wang, A. Gahlawat, N. Hovakimyan, E. Theodorou, Compositionality of Linearly Solvable Optimal Control in Networked Multi-Agent Systems, In Proceedings of American Control Conference, New Orleans, LA, 2021.
  7. G. B. Haberfeld, A. Gahlawat, N. Hovakimyan, Risk-Sensitive Rendezvous Algorithm for Heterogeneous Agents in Urban Environments, In Proceedings of American Control Conference, New Orleans, LA, 2021.
  8. S. Dadsetan, G. Rose, N. Hovakimyan, J. Hobbs, Detection and Prediction of Nutrient Deficiency Stress using Longitudinal Aerial Imagery, In Proceedings of 35th AAAI Conference on Artificial Intelligence, 2021.
  9. K. Ackerman, I. Gregory, E. Theodorou, N. Hovakimyan, A Model Predictive Control Approach for In-Flight Acoustic Constraint Compliance, In Proceedings of AIAA Guidance, Navigation and Control Conference, AIAA 2021-1958, 2021.
  10. A. Patterson, K. Ackerman, N. Hovakimyan, I. Gregory, Trajectory Generation for Distributed Electric Propulsion Vehicles with Propeller Synchronization, In Proceedings of AIAA Guidance, Navigation and Control Conference, AIAA 2021-0586, 2021.
  11. N. Wan, H. Kim, N. Hovakimyan, P. Voulgaris, L. Sha, Safety Constrained Multi-UAV Time Coordination: A Bi-level Control Framework in GPS Denied Environment, In Proceedings of AIAA Aviation Forum and Exposition, Washington, DC, 2021.
  12. A. Patterson, N. Hovakimyan, Machine Learning Method for Estimating Propeller Source Spheres, In Proceedings of AIAA Aviation Forum and Exposition, Washington, DC, 2021.

 

2020

 

  1. J. Hobbs, I. Dozier, N. Hovakimyan, Residue Density Segmentation for Monitoring and Optimizing Tillage Practices, In Proceedings of 34th Conference on Neural Information Processing Systems Workshop “Tackling Climate Change with Machine Learning”, Vancouver, Canada, 2020.
  2. N. Wan, D. Li, N. Hovakimyan, f-divergence Variational Inference, In Proceedings of 34th Conference on Neural Information Processing Systems, Vancouver, Canada, 2020.
  3. A. Lakshmanan, A. Gahlawat, N. Hovakimyan, Safe Feedback Motion Planning: A Contraction Theory and L1 Adaptive Control Based Approach, In Proceedings of 59th IEEE Conference on Decision and Control, Seoul, South Korea, pp. 1578-1583, 2020.
  4. P. Zhao, Y. Mao, C. Tao, N. Hovakimyan, X. Wang, Adaptive Estimation in Control Barrier Functions Based Quadratic Programs, In Proceedings of 59th IEEE Conference on Decision and Control, Seoul, South Korea, 2020.
  5. N. Wan, H. Kim, N. Hovakimyan, L. Sha, P. Voulgaris, A Safety Constrained Control Framework for UAVs in GPS-Denied Environment, In Proceedings of 59th IEEE Conference on Decision and Control, Seoul, South Korea, 2020.
  6. J. Pravitra, K. Ackerman, C. Cao, N. Hovakimyan, E. Theodorou, L1-Adaptive MPPI Architecture for Robust and Agile Control of Multirotors, In Proceedings of IEEE/RSJ International Conference on Intelligent Robots and Systems, Las Vegas, NV, 2020.
  7. L. Ma, N. Hovakimyan, Cooperative Target Tracking in Balanced Circular and Elliptical Formations, In Proceedings of IEEE Conference on Control Technology and Applications, Montreal, CA, 2020.
  8. A. Barbosa, T. Marinho, N. Martin, N. Hovakimyan, Multi-Stream CNN for Spatial Resource Allocation: A Crop Management Application, In Proceedings of IEEE Conference on Computer Vision and Pattern Recognition Workshop “Agriculture-Vision: Challenges and Opportunities for Computer Vision in Agriculture”, Seattle, WA, 2020.
  9. M.-T. Chiu, X. Xu, Y. Wei, Z. Huang, A. Schwing, R. Brunner, H. Khachatryan, H. Karapetyan, I. Dozier, G. Rose, D. Wilson, A. Tudor, N. Hovakimyan, T. Huang, H. Shi, Agriculture-Vision: A Large Aerial Image Database for Agricultural Pattern Analysis, In Proceedings of IEEE/CVF Conference on Computer Vision and Pattern Recognition, Seattle, WA, pp. 2828-2838, 2020.
  10. A. Gahlawat, P. Zhao, A. Patterson, N. Hovakimyan, E. Theodorou, L1-GP: Adaptive Control with Bayesian Learning, In Proceedings of Machine Learning Research, vol. 120: Learning for Dynamics and Control, pp. 826-837, 2020.
  11. A. Patterson, A. Gahlawat, N. Hovakimyan, Controller Design for Propeller Phase Synchronization with Aeroacoustic Performance Metrics, In Proceedings of AIAA Guidance, Navigation and Control Conference, Orlando, FL, AIAA 2020-1494, 2020.

 

2019

 

  1. W. Wan, H. Kim, N. Hovakimyan, P. Voulgaris, Attack-Resilient Estimation for Linear Discrete-Time Stochastic Systems with Input and State Constraints, In Proceedings of 58th IEEE Conference on Decision and Control, Nice, France, 2019.
  2. V. Cichella, I. Kaminer, C. Walton, N. Hovakimyan, A. Pascoal, Consistent Approximation of Optimal Control Problems using Bernstein Polynomials, In Proceedings of 58th IEEE Conference on Decision and Control, Nice, France, 2019.
  3. A. Patterson, A. Lakshmanan, N. Hovakimyan, Intent-aware Probabilistic Trajectory Estimation for Collision Prediction with Uncertainty Quantification, In Proceedings of 58th IEEE Conference on Decision and Control, Nice, France, pp. 3827-3832, 2019.
  4. Y. Mao, H. Jafarnejadsani, P. Zhao, E. Akyol, N. Hovakimyan, Detectability of Intermittent Zero-Dynamics Attack in Networked Control Systems, In Proceedings of 58th IEEE Conference on Decision and Control, Nice, France, 2019.
  5. W. Dai, Y. Zhang, D. Sun, N. Hovakimyan, P. Li, Multi-Spectral Visual Odometry Without Explicit Stereo Matching, In Proceedings of 7th International Conference on 3D Vision, Quebec City, Canada, 2019.
  6. S. Snyder, P. Zhao, N. Hovakimyan, L1 Adaptive Control for Switching Reference Systems: Application to Flight Control, In Proceedings of  11th IFAC Symposium on Nonlinear Control Systems, Vienna, Austria, 2019.
  7. J. Puig-Navarro, N. Hovakimyan, B.D. Allen, Cooperative Trajectory Generation Framework for Cluttered Environments, In Proceedings of AIAA Aviation Technology, Integration, and Operations Conference, Dallas, TX, AIAA 2019-3254, 2019.
  8. H.-J. Yoon, W. Wan, H. Kim, L. Sha, P. Voulgaris, Towards Resilient UAV: Escape Time in GPS Denied Environment with Sensor Drift, In Proceedings of 21st  IFAC Symposium on Automatic Control in Aerospace, Cranfield, United Kingdom, 2019.
  9. A. Lakshmanan, A. Patterson, V. Cichella, N. Hovakimyan, Proximity Queries for Absolutely Continuous Parametric Curves, In Proceedings of Robotics: Science and Systems, Freiburg, Germany, 2019.
  10. H.-J. Yoon, P. Zhao, C. Tao, C. Widdowson, R. Wang, N. Hovakimyan, E. Theodorou, Socially Aware Motion Planning for a Flying Robot with Model Predictive Path Integral Control, In Proceedings of “Algorithms and Architectures for Learning-in-the-Loop Systems in Autonomous Flight” workshop, International Conference on Robotics and Automation, Montreal, Canada, 2019.
  11. K. Ackerman, I. Gregory, N. Hovakimyan, Flight Control Methods for Multirotor UAS, In Proceedings of International Conference on Unmanned Aircraft Systems, Atlanta, GA, pp. 353-361, 2019.
  12. N. Hirzallah, P. Voulgaris, N. Hovakimyan, On Estimation of Signal Attacks: A Dual-Rate SD Control Framework, In Proceedings of European Control Conference, Napoli, Italy, pp. 4380-4385, 2019.
  13. H.-J. Yoon, D. Lee, N. Hovakimyan, Hidden Markov Model Estimation-Based Q-learning for Partially Observable Markov Decision Process, In Proceedings of American Control Conference, Philadelphia, PA, pp. 2366-2371, 2019.
  14. H.-J. Yoon, C. Widdowson, T. Marinho, R. Wang, N. Hovakimyan, A Path Planning Framework for a Flying Robot in Close Proximity of Humans, In Proceedings of American Control Conference, Philadelphia, PA, pp. 5254- 5259, 2019.
  15. A. Patterson, A. Gahlawat, N. Hovakimyan, Propeller Phase Synchronization for Small Distributed Electric Vehicles, In Proceedings of AIAA Guidance, Navigation and Control Conference, San Diego, CA, AIAA 2019-1458, 2019.
  16. H.-J. Yoon, D. Lee, A. Gahlawat, H. Chen, K. Long, N. Hovakimyan, Learning to Communicate: A Machine Learning Framework for Heterogeneous Multi-Agent Robotic Systems, In Proceedings of AIAA Guidance, Navigation and Control Conference, San Diego, CA, AIAA 2019-1456, 2019.
  17. K. Ackerman, J. Puig-Navarro, N. Hovakimyan, M. C. Cotting, D. Duke, M. Carrera, N. McCaskey, D. Esposito, J. Peterson, J. Tellefsen, A Flying and Handling Qualities Evaluation of an L1 Adaptive Control Law on Calspan’s Variable-Stability Learjet, In Proceedings of  AIAA Guidance, Navigation, and Control Conference, San Diego, CA, AIAA 2019-1084, 2019.
  18. D. Sun, N. Wan, W. Dai, Y. Zhang, N. Hovakimyan, Control Design for an Aerial Manipulator toward Payloads Pick-and-Place, In Proceedings of AIAA Guidance, Navigation, and Control Conference, San Diego, CA, AIAA 2019-1291, 2019.
  19. X. Fang, N. Wan, H. Jafarnejadsani, D. Sun, F. Holzapfel, N. Hovakimyan, Emergency Landing Trajectory Optimization for Fixed-Wing UAV under Engine Failure, In Proceedings of AIAA Guidance, Navigation, and Control Conference, San Diego, CA, AIAA 2019-0959, 2019.
  20. J. Puig-Navarro, K. Ackerman, N. Hovakimyan, M. C. Cotting, D. Duke, M. Carrera, N. McCaskey, D. Esposito, J. Peterson, J. Tellefsen, An L1 Adaptive Stability Augmentation System Designed to MIL-HDBK-1797 Level 1 Specifications, In Proceedings of AIAA Guidance, Navigation and Control Conference, San Diego, CA, AIAA 2019-1083, 2019.

 

2018

 

  1. A. Barbosa, N. Hovakimyan, N. Martin, D. Bullock, Coverage Path Planning for Field Trials, In Proceedings of ASA, CSSA, and CSA Annual Meeting – Design Optimization in Field Experiments Symposium, Baltimore, MD, 2018.
  2. D. Lee, H.-J. Yoon, N. Hovakimyan, Primal-Dual Algorithm for Distributed Reinforcement Learning: Distributed GTD2, In Proceedings of 57th IEEE Conference on Decision and Control, Miami, FL, pp. 1967-1972, 2018.
  3. H. Jafarnejadsani, H. Lee, N. Hovakimyan, P. Voulgaris, A Multirate Adaptive Control for MIMO Systems with Applications to Cyber-Physical Security, In Proceedings of 57th IEEE Conference on Decision and Control, Miami, FL, 2018.
  4. N. Wan, D. Li, N. Hovakimyan, Sensitivity Analysis of Continuous-Time Systems based on Power Spectral Density, In Proceedings of 57th IEEE Conference on Decision and Control, Miami, FL, pp. 2549-2554, 2018.
  5. G. B. Haberfeld, D. Sun, N. Hovakimyan, Stabilization and Optimal Trajectory Generation for a Compact Aerial Manipulation System with a Delta-type Parallel Robot, In Proceedings of International Conference on Unmanned Aircraft Systems, Dallas, TX, 2018.
  6. J. P. Navarro, N. Hovakimyan, N. Alexandrova, B. D. Allen, Silhouette-Informed Trajectory Generation through a Wire Maze for UAS, In Proceedings of Aviation Technology, Integration, and Operations Conference, Atlanta, GA, AIAA 2018 – 3845, 2018.
  7. H. Jafarnejadsani, J. Kim, V. Kulkarni, N. Hovakimyan, Load Capacity Improvements in Nucleic Acid Based Systems Using Discrete-Time Feedback Control, In Proceedings of 5th International Conference on Control, Decision and Information Technologies, Thessaloniki, Greece, pp. 1-6, 2018.
  8. T. Marinho, M. Amrouche, V. Cichella, D. Stipanovic, N. Hovakimyan, Guaranteed Collision Avoidance based on Line-of-Sight Angle and Time-to-Collision, In Proceedings of American Control Conference, pp. 4305-4310, Milwaukee, WI, 2018.
  9. D. Sun, N. Hovakimyan, A Bank Angle Protection Method Based on Exponential Potential Functions, In Proceedings of AIAA Guidance, Navigation and Control Conference, Kissimmee, FL, AIAA 2018-0878, 2018.

 

2017

 

  1. S. B. Mehdi, V. Cichella, T. Marinho, N. Hovakimyan, Multi-Vehicle Cooperative Missions: Avoiding Obstacles with Varying Speed Profile using Speed Adjustment, In Proceedings of 56th IEEE Conference on Decision and Control, Melbourne, Australia, pp. 2152-2157, 2017.
  2. H. Jafarnejadsani, H. Lee, N. Hovakimyan, P. Voulgaris, Dual-rate L1 Adaptive Controller for Cyber-Physical Sampled-Data Systems, In Proceedings of 56th  IEEE Conference on Decision and Control, Melbourne, Australia, 2017.
  3. C. Widdowson, H.-J. Yoon, V. Cichella, R. Wang, N. Hovakimyan, VR Environment for the Study of Collocated Interaction between small UAVs and Humans, In Proceedings of 8th International Conference on Applied Human Factors and Ergonomics, Los Angeles, CA, pp. 348-355, 2017.
  4. H. Lee, V. Cichella, N. Hovakimyan, L1 Adaptive Output Feedback Control for Underactuated MIMO Systems, In Proceedings of 20th IFAC World Congress, Toulouse, France, 2017.
  5. D. Sun, N. Hovakimyan, A Bank Angle Protection Method Based on Potential Functions for Nonlinear Fixed-Wing Aircraft Model, In Proceedings of 17th AIAA Aviation Technology, Integration, and Operations Conference, Denver, CO, AIAA 2017 – 3765, 2017.
  6. J. Puig-Navarro, N. Hovakimyan, B. D. Allen, Time-Coordinated Strategies and Control Laws for Multi-Agent Unmanned Systems, In Proceedings of 17th AIAA Aviation Technology, Integration, and Operations Conference, Denver, CO, AIAA 2017 – 3990, 2017.
  7. H. Jafarnejadsani, H. Lee, N. Hovakimyan, An L1 Adaptive Control Design for Output-Feedback Sampled-Data Systems, In Proceedings of  American Control Conference, Seattle, WA, pp. 5744-5749, 2017.
  8. M.-K. Yoon, B. Liu, N. Hovakimyan, L. Sha, VirtualDrone: Virtual Sensing, Actuation, and Communication for Attack-Resilient Unmanned Aerial Systems, In Proceedings of 8th ACM/IEEE International Conference on Cyber-Physical Systems, Pittsburg, PA, pp. 143-157, 2017.
  9. J. Dodenhöft, F. Holzapfel, R. Choe, K. Ackerman, E. Xargay, N. Hovakimyan, Design and Evaluation of an L1 Adaptive Controller for NASA’s Transport Class Model, In Proceedings of  AIAA Guidance, Navigation, and Control Conference, Crapevine, TX, AIAA 2017 – 1250, 2017.
  10. R. M. Jones, D. Sun, G. B. Haberfeld, A. Lakshmanan, T. Marinho, N. Hovakimyan, Design and Control of a Small Aerial Manipulator for Indoor Environments, In Proceedings of AIAA Guidance, Navigation, and Control Conference, Crapevine, TX, AIAA 2017 – 1374, 2017.
  11. D. Sun, X. Li, H. Jafarnejadsani, N. Hovakimyan, A Flight Envelope Protection Method Based on Potential Functions, In Proceedings of AIAA Guidance, Navigation, and Control Conference, Crapevine, TX, AIAA 2017 – 1024, 2017.

 

2016

 

  1. S. B. Mehdi, J. P. Navarro, R. Choe, V. Cichella, A. Trujillo, P. Rothhaar, M. Chandarana, L. Tran, J. Neilan N. Hovakimyan, and B. D. Allen, A Safe Cooperative Framework for Atmospheric Science Missions with Multiple Heterogeneous UAS using Piecewise Bézier Curves, In Proceedings of 16th AIAA Aviation Technology, Integration, and Operations Conference, Washington D.C., AIAA-2016-4229, 2016.
  2. T. Marinho, A. Lakshmanan, V. Cichella, C. Widdowson, H. Cui, R. M. Jones, B. Sebastian, C. Goudeseune, N. Hovakimyan, VR Study of Human-Multicopter Interaction in a Residential Setting, In Proceedings of IEEE-Virtual Reality, Greenville, SC, p. 331, 2016.
  3. G. Blois, J. Best, K. Christensen, V. Cichella, A. Donahue, N. Hovakimyan, A. Kennedy, I. Pakrasi, Assessing the Use of an UAV to Quantify Flow Processes in Rivers, In Proceedings of 8th International Conference on Fluvial Hydraulics, St. Louis, MO, 2016.
  4. K. Ackerman, E. Xargay, R. Choe, N. Hovakimyan, M. C. Cotting, R. B. Jeffrey, M. P. Blackstun, T. P. Fulkerson, T. R. Lau, S. S. Stephens,  l1 Stability Augmentation System for Calspan’s Variable-Stability Learjet, In Proceedings of  AIAA Guidance, Navigation, and Control Conference, San Diego, CA, AIAA 2016 – 0631, 2016.
  5. M. C. Cotting, R. B. Jeffrey, M. P. Blackstun, T. P. Fulkerson, T. R. Lau, S. S. Stephens, K. A. Ackerman, E. Xargay, R. Choe, N. Hovakimyan, ‘Can I get L1 on?’ Providing Consistent Handling Qualities on Calspan’s Variable-Stability Learjet, In Proceedings of AIAA Guidance, Navigation, and Control Conference, San Diego, CA, AIAA 2016 – 0632, 2016.
  6. H. Jafarnejadsani, H. Lee, N. Hovakimyan, Convex Multi-Objective Filter Optimization for L1 Output Feedback Adaptive Controller, In Proceedings of AIAA Guidance, Navigation, and Control Conference, San Diego, CA, AIAA 2016 – 1375, 2016.
  7. H. Lee, S. Snyder, A. Patterson, N. Hovakimyan, Aircraft Actuator Fault Detection and Isolation using Piecewise Constant Fault Estimation Scheme, In Proceedings of AIAA Guidance, Navigation, and Control Conference, San Diego, CA, AIAA 2016 – 0373, 2016.
  8. D. Sun, R. Choe, E. Xargay, N. Hovakimyan, An L1 Adaptive Backup Flight Control Law for Transport Aircraft with Vertical-Tail Damage, In Proceedings of  AIAA Guidance, Navigation, and Control Conference, San Diego, CA, 2016.
  9. H.-J. Yoon, V. Cichella, N. Hovakimyan, Robust Adaptive Control Allocation for an Octocopter under Actuator Faults, In Proceedings of AIAA Guidance, Navigation, and Control Conference, San Diego, CA, 2016 – 0635, 2016.

 

2015

 

  1. M. C. Cotting, M. Blackstun, S. Stevens, K. Ackerman, E. Xargay, N. Hovakimyan, Test Techniques and Lessons Learned from Adaptive Flight Control Testing, In Proceedings of 46th  Society of Flight Test Engineers International Symposium, 2015.
  2. V. Cichella, T. Marinho, D. Stipanovic, N. Hovakimyan, I. Kaminer, A. Trujillo, Collision Avoidance based on Line-of-Sight Angle, In Proceedings of 54th IEEE Conference on Decision and Control, Osaka, Japan, pp. 6779 – 6784, 2015.
  3. S. B. Mehdi, R. Choe, N. Hovakimyan, Avoiding Multiple Collisions through Path Replanning using Bezier Curves, In Proceedings of 54th IEEE Conference on Decision and Control, Osaka, Japan, 2015.
  4. A. Trujillo, H. Fan, C. Cross, L. Hempley, V. Cichella, J. P. Navarro, S. B. Mehdi, N. Hovakimyan, Operator Informational Needs for Multiple Autonomous Small Vehicles, In Proceedings of 6th International Conference on Applied Human Factors and Ergonomics (AHFE 2015) and the Affiliated Conferences, AHFE 2015, Las Vegas, Nevada, July 2015.
  5. V. Cichella, I. Kaminer, V. Dobrokhodov, N. Hovakimyan, Coordinated Vision Based Tracking of Multiple UAVs, In Proceedings of IEEE/RSJ International Conference on Intelligent Robots and Systems, Hamburg, Germany, pp. 656-661, 2015.
  6. L. Ma, N. Hovakimyan, Cooperative Target Tracking with Time-Varying Formation Radius, In Proceedings of 14th European Control Conference, Linz, Austria, 2015.
  7. A. Kirlik, K. Ackerman, B. Seefeldt, E. Xargay, D. Talleur, R. Carbonari, N. Hovakimyan, L. Sha, A. Trujillo, I. Gregory, Inverting Human/Automation Equation to Support Situation Awareness and Prevent Loss of Control, In Proceedings of 18th International Symposium on Aviation Psychology, Dayton, OH, 2015.
  8. R. Choe, J. P. Navarro, V. Cichella, E. Xargay, N. Hovakimyan, Trajectory Generation using Spatial Pythagorean Hodograph Bezier Curves, In Proceedings of AIAA Guidance, Navigation, and Control Conference, Kissimmee, FL, AIAA 2015 – 0597, January 2015.
  9. S. Snyder, N. Hovakimyan, Collision Avoidance: A Game Theoretic Approach, In Proceedings of AIAA Guidance, Navigation, and Control Conference, Kissimmee, FL, AIAA 2015-0600, January 2015.
  10. P. Navarro, E. Xargay, R. Choe, N. Hovakimyan, Cooperative Path-Following of Multiple UAVs with Absolute Temporal Constraints, In Proceedings of AIAA Guidance, Navigation, and Control Conference, Kissimmee, FL, AIAA 2015 – 0595, January 2015.
  11. S. B. Mehdi, R. Choe, V. Cichella, N. Hovakimyan, Collision Avoidance through Path Replanning using Bezier Curves, AIAA Guidance, Navigation, and Control Conference, Kissimmee, FL, AIAA 2015 – 0598, January 2015.
  12. H. Jafarnejadsani, N. Hovakimyan, Optimal Filter Design for a Discrete-Time Formulation of L1 Adaptive Control, In Proceedings of AIAA Infotech @ Aerospace, Kissimmee, FL, AIAA 2015 – 0119, January 2015.
  13. K. Ackerman, E. Xargay, B. Seefeldt, D. Talleur, R. Carbonari, A. Kirlik, N. Hovakimyan, A. Trujillo, C. Belcastro, I. Gregory, Flight Envelope Information-Augmented Display for Enhanced Pilot Situational Awareness, In Proceedings of AIAA Infotech @ Aerospace, Kissimmee, FL, AIAA 2015 – 1112, January 2015.
  14. H. Mahdianfar, N. Hovakimyan, A. Pavlov, O. M. Aamo, Robust Regulation of Heave-Induced Pressure Oscillations in Offshore MPD, In Proceedings of 2nd IFAC Workshop on Automatic Control in Offshore Oil and Gas Production, Florianopolis, Brazil, 2015.

 

2014

 

  1. S. Bhattacharya, T. Basar, N. Hovakimyan, On the Construction of Barrier in Visibility based Pursuit-Evasion Game, European Control Conference, Strasbourg, France, 2014.
  2. H. Lee, V. Cichella, N. Hovakimyan, L1 Adaptive Output Feedback Augmentation of Model Reference Control, In Proceedings of American Control Conference, Portland, OR, pp. 697-702, 2014.
  3. V. Cichella, R. Choe, S. B. Mehdi, E. Xargay, N. Hovakimyan, V. Dobrokhodov, I. Kaminer, A. Pascoal, A. P. Aguiar, Safe Time-Critical Cooperative Missions for Multiple Multirotor UAVs, In Proceedings of Robotics Science and Systems Workshop “Distributed Control and Estimation for Robotic Vehicle Networks”, UC Berkeley, Berkley, CA, 2014.
  4. N. Tekles, E. Xargay, R. Choe, N. Hovakimyan, I. Gregory, F. Holzapfel, Flight Envelope Protection for NASA’s Transport Class Model, In Proceedings of AIAA Guidance, Navigation, and Control Conference, Washington DC, AIAA2014-0269, 2014.
  5. J. Chongvisal, N. Tekles, E. Xargay, D. Talleur, A. Kirlik, N. Hovakimyan, Loss-of-Control Prediction and Prevention for NASA’s Transport Class Model, In Proceedings of AIAA Guidance, Navigation, and Control Conference, Washington DC, AIAA2014-0784, 2014.
  6. V. Cichella, R. Choe, S. Mehdi, E. Xargay, N. Hovakimyan, V. Dobrokhodov, I. Kaminer, Trajectory Generation and Collision Avoidance for Safe Operation of Cooperating UAVs, In Proceedings of AIAA Guidance, Navigation, and Control Conference, Washington DC, AIAA2014-0972, 2014.
  7. K. Ackerman, S. Pelech, R. Carbonari, N. Hovakimyan, A. Kirlik, Pilot-in-the-Loop Flight Simulator for NASA’s Transport Class Model, In Proceedings of AIAA Guidance, Navigation, and Control Conference, Washington DC, AIAA2014-0613, 2014.
  8. H. Lee, S. Snyder, N. Hovakimyan, An Adaptive Unknown Input Observer for Fault Detection and Isolation of Aircraft Actuator Faults, In Proceedings of AIAA Guidance, Navigation, and Control Conference, Washington DC, AIAA2014-0266, 2014.

 

2013

 

  1. H. Sun, N. Hovakimyan, T. Basar, Reference Tracking of Uncertain Nonlinear Multi-Input Multi-Output Quantized Systems using L1 Adaptive Control, In Proceedings of 52nd  IEEE Conference on Decision and Control, Florence, Italy, pp. 7546-7551, 2013.
  2. H. Sun, Z. Li, N. Hovakimyan, T. Basar, Performance Prediction of L1 Adaptive Control in Linear Stochastic Systems, In Proceedings of 52nd  IEEE Conference on Decision and Control, Florence, Italy, pp. 606-611, 2013.
  3. S. Mallikarjunan, Z. Zuo, B. Nesbitt, N. Hovakimyan,  L1 Backstepping for Robust Trajectory Tracking, 2nd IFAC RED-UAS, In Proceedings of 2013 Workshop on Research, Education and Development of Unmanned Aerial Systems, Compiegne, France, 2013.
  4. V. Cichella, R. Choe, S. B. Mehdi, E. Xargay. N. Hovakimyan, I. Kaminer, and V. Dobrokhodov, A 3D Path-Following Approach for a Multirotor UAV on SO(3), In Proceedings of 2nd IFAC RED-UAS 2013 Workshop on Research, Education and Development of Unmanned Aerial Systems, Compiegne, France, 2013.
  5. K.-D. Nguyen, H. Dankowicz, N. Hovakimyan, Marginal Stability in L1 Adaptive Control of Manipulators, In Proceedings of the ASME 2013 International Design Engineering Technical Conferences & Computers and Information in Engineering Conference, IDETC/CIE 2013, Portland, OR, DETC2013-12744, 2013  (one of the five finalists for “best student paper award”).
  6. R. Choe, V. Cichella, E. Xargay, N. Hovakimyan, I. Kaminer, Cooperative Path Following and Collision Avoidance along Feasible Trajectories for UAVs, In Proceedings of AIAA Guidance, Navigation and Control Conference, Boston, MA, AIAA-2013-4582, 2013.
  7. M. Bichlmeier, F. Holzapfel, E. Xargay, N. Hovakimyan, L1 Adaptive Augmentation of a Helicopter Baseline Controller, In Proceedings of AIAA Guidance, Navigation and Control Conference, Boston, MA, AIAA-2013-4855, 2013.
  8. H. Vogel, W. Fichter, R. Choe, E. Xargay, N. Hovakimyan, Magnetic Momentum Control of a Satellite Augmented with an Adaptive Controller, In Proceedings of AIAA Guidance, Navigation and Control Conference, Boston, MA, AIAA-2013-5092, 2013.
  9. V. Cichella, I. Kaminer, V. Dobrokhodov, N. Hovakimyan, Cooperative Vision-based Tracking of Multiple UAVs, In Proceedings of AIAA Guidance, Navigation and Control Conference, Boston, MA, AIAA-2013-5110, 2013.
  10. R. Choe, E. Xargay, and N. Hovakimyan, Adaptive Control for a Class of Nonaffine-in-Control Nonlinear Systems, In Proceedings of IFAC International Workshop on Adaptation and Learning in Control and Signal Processing, Caen, France, July 2013.
  11. J. Wang, F. Holzapfel, E. Xargay, and N. Hovakimyan, “Non-cascaded Dynamic Inversion Design for Quadrotor Position Control with L1 Augmentation,” In Proceedings of CEAS Conference on Guidance, Navigation, and Control Conference, Delft, The Netherlands, April 2013.
  12. X. Wang, E. Kharisov, N. Hovakimyan, L1 Adaptive Control of Uncertain Networked Control Systems, In Proceedings of American Control Conference, Washington, DC, pp. 4122-4127, 2013.
  13. J. Vanness, E. Kharisov, N. Hovakimyan, L1 Adaptive Output-Feedback Controller for Linear Time-Varying Reference Systems, In Proceedings of American Control Conference, Washington, DC, pp. 4183-4188, 2013.
  14. L. Ma, N. Hovakimyan, Cooperative Target Tracking in Balanced Vehicular Formations: Multiple UAVs Tracking a Ground Vehicle, In Proceedings of American Control Conference, Washington, DC, pp. 5386-5391, 2013.
  15. X. Wang, N. Hovakimyan, L. Sha, L1-Simplex: Fault-Tolerant Control of Cyber-Physical Systems, In Proceedings of ACM/IEEE 4th International Conference on Cyber-Physical Systems, Philadelphia, PA, pp. 41-50, 2013 (one of the four finalists for “best paper award”).

 

2012

 

  1. I. Kaminer, E. Xargay, V. Cichella, N. Hovakimyan, A. Pascoal,V. Dobrokhodov, Time-Critical Cooperative Path Following of Multiple UAVs: Case Studies, In Proceedings of Itzhack Y. Bar-Itzhack Memorial Symposium on Estimation, Navigation and Spacecraft Control, Technion, Haifa, Israel, 2012.
  2. S. Bhattacharya, T. Basar, N. Hovakimyan, Game-theoretic analysis of a visibility based pursuit-evasion game in the presence of a circular obstacle, In Proceedings (1479) of American Institute of Physics, pp. 1222-1225, 2012.
  3. V. Cichella, I. Kaminer, E. Xargay, V. Dobrokhodov, N. Hovakimyan, P. Aguiar, A. Pascoal, A Lyapunov-Based Approach for Time-Coordinated 3D Path-Following of Multiple Quadrotors in SO(3), In Proceedings of 51st IEEE Conference on Decision and Control, Maui, HI, pp. 1776-1781, 2012.
  4. J. Vanness, E. Kharisov, N. Hovakimyan, Generalization of Proportional Adaptation Law for L1 Adaptive Controller, In Proceedings of 51st IEEE Conference on Decision and Control, Maui, HI, pp. 3215-3220, 2012.
  5. E. Xargay, R. Choe, N. Hovakimyan, I. Kaminer, Convergence of a PI Coordination Protocol in Networks with Switching Topology and Quantized Measurements, pp. 6107-6112, In Proceedings of 51st IEEE Conference on Decision and Control, Maui, HI, 2012.
  6. Z. Li, H. Sun, N. Hovakimyan, L1 Adaptive Controller for MIMO System with Unmatched Uncertainties Using Modified Piecewise Constant Adaptation Law, In Proceedings of 51st IEEE Conference on Decision and Control, Maui, HI, pp. 7303-7308, 2012.
  7. D. Erdos, T. Shima, E. Kharisov, N. Hovakimyan, Adaptive Control Integrated Missile Autopilot and Guidance, In Proceedings of AIAA Guidance, Navigation and Control Conference, Minneapolis, MN, AIAA-2012-4465, 2012.
  8. X. Wang, E. Xargay, N. Hovakimyan, I. Gregory, Integration of Dynamic Flight Envelope into the Adaptive Control Framework, In Proceedings of AIAA Guidance, Navigation and Control Conference, Minneapolis, MN, AIAA-2012-4894, 2012 (best presentation award).
  9. S. Mallikarjunan, B. Nesbitt, E. Kharisov, E. Xargay, N. Hovakimyan, C. Cao, Adaptive Controller for Attitude Control of Multirotors, In Proceedings of AIAA Guidance, Navigation and Control Conference, Minneapolis, MN, AIAA-2012-4831, 2012.
  10. F. Peter, F. Holzapfel, E. Xargay, N. Hovakimyan, L1 Adaptive Augmentation of a Missile Autopilot, In Proceedings of AIAA Guidance, Navigation and Control Conference, Minneapolis, MN, AIAA-2012-4832, 2012.
  11. Z. Li, N. Hovakimyan, G.-O. Kaasa, Bottomhole Pressure Estimation and L1 Adaptive Control in Managed Pressure Drilling System, In Proceedings of 1st IFAC Workshop on Automatic Control of Offshore Oil and Gas Production, Trondheim, Norway, pp. 128-133, 2012.
  12. H. Sun, Z. Li, N. Hovakimyan, T. Basar, G. Downton, L1 Adaptive Control for Directional Drilling Systems, In Proceedings of 1st IFAC Workshop on Automatic Control of Offshore Oil and Gas Production, Trondheim, Norway, pp. 72-77, 2012.
  13. E. Kharisov, N. Hovakimyan, Generalization of L1 Adaptive Control Architecture for Switching Estimation Laws, In Proceedings of American Control Conference, Montreal, Canada, pp. 1907 – 1912, 2012.
  14. J. Vanness, E. Kharisov, N. Hovakimyan, L1 Adaptive Control with Proportional Adaptation Laws, In Proceedings of American Control Conference, Montreal, Canada, pp. 1919 – 1924, 2012.
  15. M. Naghnaeian, P. Voulgaris, N. Hovakimyan, On the Robustness of L1 Adaptive Control Law with Time-Varying Perturbations and Filter Design, In Proceedings of American Control Conference, Montreal, Canada, pp. 1937 – 1942, 2012.
  16. X. Wang, N. Hovakimyan, A Decoupled Design in Distributed Control of Uncertain Networked Control Systems, In Proceedings of American Control Conference, Montreal, Canada, pp. 6497 – 6502, 2012.

 

2011

 

  1. K.-K. Kim, E. Kharisov, N. Hovakimyan, Filter Design for L1 Adaptive Output Feedback Controller, In Proceedings of 50th IEEE Conference on Decision and Control, Orlando, FL, pp. 5653 – 5658, 2011.
  2. S. Bhattacharya, T. Basar, N. Hovakimyan, Non-cooperative Strategies for Connectivity Maintenance among Autonomous Mobile Agents, In Proceedings of 50th IEEE Conference on Decision and Control, Orlando, pp. 261 – 266, FL, 2011.
  3. D. Li, N. Hovakimyan, Optimal State estimation over Gaussian Channels via Noiseless Feedback, In Proceedings of 50th IEEE Conference on Decision and Control, Orlando, FL, pp. 2608 – 2613, 2011.
  4. Z. Li, N. Hovakimyan, G.-O. Kaasa, Fast Estimation and L1 Adaptive Control for Bottomhole Pressure in Managed Pressure Drilling, In Proceedings of IEEE Multi-Conference on Systems and Control, pp. 996-1001, Denver, CO, 2011.
  5. H. Sun, Z. Li, N. Hovakimyan, T. Basar, G. Downton, L1 Adaptive Controller for a Rotary Steerable System, In Proceedings of IEEE Multi-Conference on Systems and Control, pp. 1020-1025, Denver, CO, 2011.
  6. X. Wang, H. Sun, N. Hovakimyan, T. Basar, Bounds on Transmission Rates and Performance for Quantized Networked Systems, In Proceedings of 18th IFAC World Congress, Milan, Italy, 2011.
  7. H. Sun, N. Hovakimyan, T. Basar, L1 Adaptive Controller for Uncertain Nonlinear Multi-Input Multi-Output Systems with Input Quantization, In Proceedings of 18th IFAC World Congress, Milan, Italy, 2011.
  8. I. Gregory, E. Xargay. C. Cao, N. Hovakimyan, Flight Test of L1 Adaptive Control Law: Offset Landings and Large Flight Envelope Modeling Work, In Proceedings of AIAA Guidance, Navigation and Control Conference, Portland, OR, AIAA-2011-6608, 2011.
  9. R. Choe, N. Hovakimyan, Perching Maneuver for an MAV Augmented with an L1 Adaptive Controller, In Proceedings of AIAA Guidance, Navigation and Control Conference, Portland, OR, AIAA-2011-6455, 2011.
  10. O. Stroosma, H. Damveld, J. A. Mulder, R. Choe, E. Xargay, N. Hovakimyan, A Handling Qualities Assessment of a Business Jet Augmented with an L1 Adaptive Controller, In Proceedings of AIAA Guidance, Navigation and Control Conference, Portland, OR, AIAA-2011-6610, 2011.
  11. V. Cichella, E. Xargay, V. Dobrokhodov, I. Kaminer, A. Pascoal, N. Hovakimyan, Geometric 3D Path-Following Control for a Fixed-wing UAV on SO(3), In Proceedings of AIAA Guidance, Navigation and Control Conference, Portland, OR, AIAA-2011-6415, 2011.
  12. Z. Li, J. Vanness, D. Caballero, N. Hovakimyan, D. Stipanovic, Distributed Target Tracking and Collision Avoidance using Multiple Nonholonomic Robots with Uncertain Dynamics, In Proceedings of AIAA Guidance, Navigation and Control Conference, Portland, OR, AIAA-2011-6479, 2011.
  13. M. Geiser, E. Xargay, N. Hovakimyan, T. Bierling, F. Holzapfel, L1 Adaptive Augmented Dynamic Inversion Controller for a High Agility UAV, In Proceedings of AIAA Guidance, Navigation and Control Conference, Portland, OR, AIAA-2011-6457, 2011.
  14. E. Kharisov, K.-K. Kim, X. Wang, and N. Hovakimyan, Limiting Behavior of L1 Adaptive Controllers, In Proceedings of AIAA Guidance, Navigation and Control Conference, Portland, OR, AIAA-2011-6441, 2011.
  15. L. Ma, N. Hovakimyan, Vision-Based Cyclic Pursuit for Cooperative Target Tracking, In Proceedings of American Control Conference, San Francisco, CA, pp. 4616-4621, 2011.
  16. X. Wang, N. Hovakimyan, L1 Adaptive Controller for Nonlinear Reference Systems, In Proceedings of American Control Conference, San Francisco, CA, pp. 594-599, 2011.
  17. Z. Li, N. Hovakimyan, D. Stipanovic, Distributed Multi-Agent Tracking and Estimation with Uncertain Agent Dynamics, In Proceedings of American Control Conference, San Francisco, CA, pp. 2204-2209, 2011.
  18. H. Sun, N. Hovakimyan, T. Basar, L1 Adaptive Controller for Quantized Systems, In Proceedings of American Control Conference, San Francisco, CA, pp. 582-587, 2011.
  19. H. Sun, Q. Zhu, N. Hovakimyan, T. Basar, L1 Adaptive Controller for Positive LTI Systems, In Proceedings of American Control Conference, San Francisco, CA, pp. 13 – 18, 2011.
  20. E. Xargay, C. Langbort, N. Hovakimyan, L1 Adaptive Controller for Optical Soliton Propagation, In Proceedings of American Control Conference, San Francisco, CA, pp. 7-12, 2011.
  21. E. Kharisov, N. Hovakimyan, L1 Adaptive Output Feedback Controller for Minimum Phase Systems, In Proceedings of American Control Conference, San Francisco, CA, pp. 1182-1187, 2011.
  22. D. Li, N. Hovakimyan, Bode-Like Integral for Stochastic Switched Systems with Applications in Networked Control Systems and Macroeconomics, In Proceedings of American Control Conference, San Francisco, CA, pp. 2843 – 2848, 2011.

 

2010

 

  1. D. Li, N. Hovakimyan, Noise Attenuation Over Additive Gaussian Channels, In Proceedings of 49th IEEE Conference on Decision and Control, Atlanta, GA, pp. 2348 – 2353, 2010.
  2. Z. Li, N. Hovakimyan, V. Dobrokhodov, I. Kaminer, Vision-based Target Tracking and Motion Estimation using a Small UAV, In Proceedings of 49th IEEE Conference on Decision and Control, Atlanta, GA, pp. 2505 – 2510, 2010.
  3. D. Li, N. Hovakimyan, T. Georgiou, Robustness of L1 Adaptive  Controllers in the Gap  Metric in the Presence of Nonzero Initialization, In Proceedings of 49th IEEE Conference on Decision and Control, Atlanta, GA, pp. 2723 – 2728, 2010.
  4. X. Wang, N. Hovakimyan, Performance Prediction in Uncertain Networked Control Systems Using L1-Adaptation-Based Distributed Event-Triggering, In Proceedings of 49th IEEE Conference on Decision and Control, Atlanta, GA, pp. 7570 – 7575, 2010.
  5. X. Wang, Y. Sun, N. Hovakimyan, Relaxing the Consistency Condition in Distributed Event-Triggered Networked Control Systems, In Proceedings of 49th IEEE Conference on Decision and Control, Atlanta, GA, pp. 4727 – 4732, 2010.
  6. R. Choe, E. Xargay, N. Hovakimyan, C. Cao, I. Gregory, L1 Adaptive Control under Anomaly: Flying Qualities and Adverse Pilot Interactions, In Proceedings of AIAA Guidance, Navigation and Control Conference, Toronto, Canada, AIAA-2010-7775, 2010.
  7. E. Xargay, N. Hovakimyan, V. Dobrokhodov, R. Statnikov, I. Kaminer, C. Cao, I. Gregory, L1 Adaptive Flight Control System: Systematic Design and Verification and Validation of Control Metrics, In Proceedings of AIAA Guidance, Navigation and Control Conference, Toronto, Canada, AIAA-2010-7773, 2010.
  8. I. Gregory, E. Xargay, C. Cao and N. Hovakimyan, Flight Test of L1 Adaptive Controller on the NASA AirSTAR Flight Test Vehicle, In Proceedings of AIAA Guidance, Navigation and Control Conference, Toronto, Canada, AIAA-2010-8015, 2010.
  9. G. Avanzini, E. Capello, I. Piazenca, F. Quagliotti, N. Hovakimyan, E. Xargay, L1 Adaptive Control of Flexible Aircraft: Preliminary Study, In Proceedings of AIAA Atmospheric Flight Mechanics Conference, Toronto, Canada, AIAA-2010-7501, 2010.
  10. E. Kharisov, N. Hovakimyan, K. Astrom, Comparison of Several Adaptive Controllers According to Their Robustness Metrics, In Proceedings of AIAA Guidance, Navigation and Control Conference, Toronto, Canada, AIAA-2010-8047, 2010.
  11. D. Li, N. Hovakimyan, C. Cao, Positive Invariant Set of Adaptive Controller in the Presence of Input Saturation, In Proceedings of AIAA Guidance, Navigation and Control Conference, Toronto, Canada, AIAA-2010-7535, 2010.
  12. X. Wang, N. Hovakimyan, Predicting the Performance of Uncertain Multi-Agent Systems Using Event-Triggering and L1 Adaptation, In Proceedings of AIAA Guidance, Navigation and Control Conference, Toronto, Canada, AIAA-2010-8327, 2010.
  13. E. Kharisov, X. Wang, N. Hovakimyan, Distributed Event-Triggered Consensus Algorithm for Uncertain Multi-Agent Systems, In Proceedings of AIAA Guidance, Navigation and Control Conference, Toronto, Canada, AIAA-2010-8325, 2010.
  14. V. Dobrokhodov, I. Kaminer, K. Jones, E. Xargay, Z. Li, N. Hovakimyan, P. Aguiar, A. Pascoal, On Coordinated Road Search using Time-Coordinated Path Following of Multiple UAVs, In Proceedings of AIAA Guidance, Navigation and Control Conference, Toronto, Canada, AIAA-2010-7583, 2010.
  15. K.-K. Kim, N. Hovakimyan, Development of Verification and Validation Approaches for L1 Adaptive Control: Multi-Criteria Optimization for Filter Design, In Proceedings of AIAA Guidance, Navigation and Control Conference, Toronto, Canada, AIAA-2010-7691, 2010.
  16. H. Sun, N. Hovakimyan, T. Basar, L1 Adaptive Controller for Systems with Input Quantization, In Proceedings of American Control Conference, Baltimore, MD, pp. 253-258, 2010.
  17. D. Li, N. Hovakimyan, T. Georgiou, Robustness of L1 Adaptive Controllers in Gap Metric, In Proceedings of American Control Conference, Baltimore, MD, pp. 3247-3252, 2010.
  18. E. Kharisov, N. Hovakimyan, J. Wang, C. Cao, L1 Adaptive Controller for Time-Varying Reference Systems in the Presence of Unmodeled Dynamics, In Proceedings of American Control Conference, Baltimore, MD, pp. 886-891, 2010.
  19. E. Xargay, N. Hovakimyan, C. Cao, L1 Adaptive Controller in the Presence of Uncertain Nonlinear Cross-Coupling, In Proceedings of American Control Conference, Baltimore, MD, pp. 875-879, 2010.
  20. A. Young, L. Ma, N. Hovakimyan, Time-Critical Coordination of Multiple Vehicles with Uni-Directional Communication Constraints, In Proceedings of American Control Conference, Baltimore, MD, pp. 1617-1622, 2010.
  21. L. Ma, N. Hovakimyan, Cyclic Pursuit with Vision-Assisted Estimation, In Proceedings of American Control Conference, Baltimore, MD, pp. 5532-5537, 2010.
  22. S.-J. Yoo, N. Hovakimyan, C. Cao, Decentralized L1 Adaptive Control for Large-Scale Systems With Unknown Time-Varying Interaction Parameters, In Proceedings of American Control Conference, Baltimore, MD, pp. 5590-5595, 2010.
  23. X. Zou, C. Cao, N. Hovakimyan,  L1 Adaptive Controller for Systems with Hysteresis Uncertainties, In Proceedings of American Control Conference, Baltimore, MD, pp. 6662-6667, 2010.
  24. J. Luo, C. Cao, N. Hovakimyan, L1 Adaptive Controller for a Class of Systems with Unknown Nonlinearities, In Proceedings of American Control Conference, Baltimore, MD, pp. 1659-1664, 2010.
  25. D. Li, N. Hovakimyan, Control of Continuous-Time Systems with Communication Constraints: Linear Quadratic Stabilization and Fundamental Limitations, In Proceedings of American Control Conference, Baltimore, MD, pp. 343-348, 2010.
  26. X. Wang, N. Hovakimyan, L1 Adaptive Control of Event-Triggered Networked Systems, In Proceedings of American Control Conference, Baltimore, MD, pp. 2458-2463, 2010.
  27. E. Kharisov, N. Hovakimyan, Application of L1 Adaptive Controller to Wing-Rock, In Proceedings of AIAA InfoTech@Aerospace, Atlanta, GA, AIAA 2010-3395, 2010.
  28. E. Xargay, N. Hovakimyan, V. Dobrokhodov, I. Kaminer, N. Hovakimyan, C. Cao, L1 Adaptive Flight Control System: Flight Evaluation and Technology Transition, In Proceedings of AIAA InfoTech@Aerospace, Atlanta, GA, AIAA 2010-3365, 2010.

 

2009

 

  1. A. Akhmetzhanov, N. Hovakimyan, Analytical and Numerical Constructions in Pursuit-Evasion Games on 2D Surfaces,  In Proceedings of Conference on Control and Optimization of Dynamical Systems, Tashkent, Uzbekistan, 2009
  2. V. Dobrokhodov, I. Kitsios, I. Kaminer, K. Jones, E. Xargay, N. Hovakimyan, C. Cao, M. Lizarraga, Flight Validation of a Metrics Driven L1 Adaptive Control, In Proceedings of International Conference on Control and Automation, Christchurch, New Zealand, 2009.
  3. D. Li, N. Hovakimyan, C. Cao, L1 Adaptive Controller in the Presence of Input Saturation, AIAA-2009-6064, In Proceedings of AIAA Guidance, Navigation and Control Conference, Chicago, IL, 2009.
  4. Z. Li, V. Dobrokhodov, N. Hovakimyan, I. Kaminer, Development and Implementation of L1 Adaptive Gimbal Tracking Loop Onboard of Small UAV, AIAA-2009-5681, In Proceedings of AIAA Guidance, Navigation and Control Conference, Chicago, IL, 2009.
  5. T. Leman, E. Xargay, G. Dullerud, N. Hovakimyan, T. Wendell,  L1 Adaptive Controller for X-48B Aircraft, AIAA-2009-5619, In Proceedings of AIAA Guidance, Navigation and Control Conference, Chicago, IL, 2009.
  6. J. Wang, N. Hovakimyan, C. Cao, L1 Adaptive Augmentation of Baseline Gain-scheduled Controller for Racetrack Maneuver in Aerial Refueling, AIAA-2009-5739, In Proceedings of AIAA Guidance, Navigation and Control Conference, Chicago, IL, 2009.
  7. I. Gregory, C. Cao, E. Xargay, N. Hovakimyan, L1 Adaptive Control Design for NASA AirSTAR Flight Test Vehicle, AIAA-2009-5738, In Proceedings of AIAA Guidance, Navigation and Control Conference, Chicago, IL, 2009.
  8. I. Kitsios, V. Dobrokhodov, I. Kaminer, K. Jones, E. Xargay, N. Hovakimyan, C. Cao, M. Lizarraga, I. Gregory, N. Nguyen, K. Krishnakumar, Experimental Validation of a Metrics Driven  L1 Adaptive Control in the Presence of Generalized Unmodeled Dynamics, AIAA-2009-6188, In Proceedings of AIAA Guidance, Navigation and Control Conference, Chicago, IL, 2009.
  9. A. Melikyan, A. Akhmetzhanov, N. Hovakimyan, Analytical and Numerical Constructions in Pursuit-Evasion Games on 2D Surfaces, In Proceedings of SIAM Conference on Control and Its Applications, Denver, CO, 2009
  10. A. Paranjape, E. Xargay, N. Hovakimyan, C. Cao, L1 Adaptive Controller for Nonlinear Strict Feedback Systems, In Proceedings of Mediterranean Conference on Control and Automation, Thessaloniki, Greece, pp. 229-234, 2009.
  11. E. Xargay, N. Hovakimyan, C. Cao, Benchmark Problems of Adaptive Control Revisited by L1 Adaptive Controller, In Proceedings of Mediterranean Conference on Control and Automation, Thessaloniki, pp. 31-36, Greece, 2009.
  12. L. Ma, C. Cao, N. Hovakimyan, C. Woolsey, G. Hu, Estimation of Affine Motion, In Proceedings of American Control Conference, St. Louis, MO, pp. 5085 – 5090 , 2009.
  13. B. Guerreiro, C. Silvestre, R. Cunha, C. Cao, N. Hovakimyan, L1 Adaptive Controller for Autonomous Rotorcraft, In Proceedings of American Control Conference, St. Louis, MO, pp. 3250 – 3255 , 2009.
  14. E. Xargay, N. Hovakimyan, C. Cao, Adaptive Output Feedback Controller for Nonlinear Systems in the Presence of Unmodeled Dynamics, In Proceedings of American Control Conference, St. Louis, MO, pp. 5091 – 5096 , 2009.
  15. Y. Lei, C. Cao, E. Cliff, N. Hovakimyan, A. Kurdila, K. Wise, Design of an L1  Adaptive Controller for a Hypersonic Vehicle in the Presence of Flexible Dynamics, In Proceedings of American Control Conference, St. Louis, MO, pp. 3166 – 3171 , 2009.
  16. Z. Li, N. Hovakimyan, C. Cao and G.-O. Kaasa, Integrated Estimator and L1 Adaptive Controller for Well Drilling, In Proceedings of American Control Conference, St. Louis, MO, pp. 1958 – 1963, 2009.
  17. C. Cao and N. Hovakimyan, L1 Adaptive Output Feedback Controller for Non-Strictly Positive Real Multi-Input Multi-Output Systems in the Presence of Unknown Nonlinearities, In Proceedings of American Control Conference, St. Louis, MO, pp. 5138 – 5143 , 2009.
  18. J. Wang, N. Hovakimyan, C. Cao, Racetrack Maneuver of Aerial Refueling by L1 Adaptive Controller, AIAA Infotech@Aerospace Conference and Exhibit, Seattle, WA, AIAA 2009-1888, 2009.
  19. V. Dobrokhodov, I. Kitsios, I. Kaminer, K. Jones, E. Xargay, N. Hovakimyan, C. Cao, M. Lizarraga, I. Gregory, Preliminary Results of Development, System Integration and Flight Validation of a Metrics Driven L1 Adaptive Control, In Proceedings of AIAA Infotech@Aerospace Conference and Exhibit, Seattle, WA, AIAA-2009-2053, 2009.

 

2008

 

  1. K. Wise, E. Lavretsky, N. Hovakimyan, C. Cao, J. Wang, Verifiable L1 Adaptive Flight Control: UCAV and Aerial Refueling, AIAA-2008-6658, In Proceedings of AIAA Guidance, Navigation and Control Conference, Honolulu, HI, 2008.
  2. M. C. Cotting, C. Cao, N. Hovakimyan, R. Kraus, W. Durham, Simulator Testing of Longitudinal Flying Qualities with L1 Adaptive Controller, AIAA-2008-6551, In Proceedings of AIAA Guidance, Navigation and Control Conference, Honolulu, HI, 2008.
  3. L. Ma, C. Cao, N. Hovakimyan, V. Dobrokhodov, I. Kaminer, Adaptive Vision-Based Guidance Law with Guaranteed Performance Bounds for Tracking a Ground Target with Time-Varying Velocity, AIAA-2008-7445, In Proceedings of AIAA Guidance, Navigation and Control Conference, Honolulu, HI, 2008.
  4. L. Ma, C. Cao, A. Young, N. Hovakimyan, Motion Estimation via a Zoom Camera, AIAA-2008-7446, In Proceedings of AIAA Guidance, Navigation and Control Conference, Honolulu, HI, 2008.
  5. A. Young, L. Ma, N. Hovakimyan, Vision-Based Obstacle Avoidance of Wheeled Robots using Fast Estimation, AIAA-2008-7449, In Proceedings of AIAA Guidance, Navigation and Control Conference, Honolulu, HI, 2008.
  6. V. Dobrokhodov, I. Kitsiois, I. Kaminer, K. Jones, E. Xargay, N. Hovakimyan, C. Cao, M. Lizarraga, I. Gregory, Flight Validation of Metrics Driven L1 Adaptive Control, AIAA-2008-6987, In Proceedings of AIAA Guidance, Navigation and Control Conference, Honolulu, HI, 2008.
  7. D. Li, N. Hovakimyan, C. Cao, K. Wise, Filter Design for Feedback-loop Trade-off of L1 Adaptive Controller: A Linear Matrix Inequality Approach, AIAA-2008-6280, In Proceedings of AIAA Guidance, Navigation and Control Conference, Honolulu, HI, 2008.
  8. J. Wang, C. Cao, N. Hovakimyan, R. Hindman, B. Ridgely, L1 Adaptive Controller for a Missile Longitudinal Autopilot Design, AIAA-2008-6282, In Proceedings of AIAA Guidance, Navigation and Control Conference, Honolulu, HI, 2008.
  9. P. Aguiar, A. Pascoal, I. Kaminer, V. Dobrokhodov, E. Xargay, N. Hovakimyan, C. Cao, R. Ghabcheloo, Time-Coordinated Path Following of Multiple UAVs over Time-Varying Networks using  Adaptation, AIAA-2008-7131, In Proceedings of AIAA Guidance, Navigation and Control Conference, Honolulu, HI, 2008.
  10. E. Kharisov, I. Gregory, C. Cao, N. Hovakimyan, L1 Adaptive Control Laws for Flexible Space Launch Vehicle and Proposed Plan for Flight Test Validation, In Proceedings of AIAA-2008-7128, AIAA Guidance, Navigation and Control Conference, Honolulu, HI, 2008.
  11. C. Cao, N. Hovakimyan, L1 Adaptive Output Feedback Controller for Non-Strictly Positive Real Reference Systems with Applications to Aerospace Examples, AIAA-2008-7288, In Proceedings of AIAA Guidance, Navigation and Control Conference, Honolulu, HI, 2008.
  12. D. M. Stipanović, A. Melikyan, N. Hovakimyan, Nonlinear Pursuit-Evasion Games with Incomplete Information, In Proceedings of L. S. Pontryagin Centennial Anniversary Conference, Moscow, Russia, 2008.
  13. D. M. Stipanović, A. Melikyan, N. Hovakimyan, Differential Inequalities for Dynamic Games, In Proceedings of Second International Conference on Game Theory and Management, Saint Petersburg, Russia, 2008
  14. P. Aguiar, I. Kaminer, R. Ghabcheloo, A. Pascoal, E. Xargay, N. Hovakimyan, C. Cao, Coordinated Path Following of Multiple UAVs for Time-Critical Missions in the Presence of Time-Varying Communication Topologies, In Proceedings of IFAC Congress, Seoul, South Korea, 2008.
  15. D. M. Stipanović, A. Melikyan, N. Hovakimyan, Guaranteed Strategies for Nonholonomic Players in Pursuit-Evasion Games, In Proceedings of XIII International Symposium on Dynamic Games and Applications, Warsaw, Poland, 2008.
  16. C. Cao, N. Hovakimyan, L1 Adaptive Controller for Multi-Input Multi-Output Systems in the Presence of Unmatched Disturbances, In Proceedings of American Control Conference, Seattle, WA, pp. 4105-4110, 2008.
  17. C. Cao, N. Hovakimyan, L1 Adaptive Controller for a Class of Systems with Unknown Nonlinearities: Part I, In Proceedings of American Control Conference, Seattle, WA, pp. 4093–4098, 2008.
  18. C. Cao, N. Hovakimyan, L1 Adaptive Controller for  Nonlinear Systems in the Presence of Unmodelled Dynamics: Part II, In Proceedings of American Control Conference, Seattle, WA, pp. 4099-4104, 2008.

 

2007

 

  1. C. Cao, N. Hovakimyan, L1 Adaptive Controller for Systems in the Presence of Unmodeled Actuator Dynamics, In Proc. of 46th IEEE Conference on Decision and Control, New Orleans, LA, pp. 891-896, 2007.
  2. R. Hindman, C. Cao, N. Hovakimyan, Design of High-Performance, Stable L1 Adaptive Output Feedback Controllers, AIAA 2007-6644, In Proceedings of AIAA Guidance, Navigation and Control Conference, Hilton Head Island, SC, 2007.
  3. I. Gregory, C. Cao, V. Patel, N. Hovakimyan, L1 Adaptive Control Laws for Flexible Wind Tunnel Model of High-Aspect Ratio Flying Wing, AIAA 2007-6525, In Proceedings of AIAA Guidance, Navigation and Control Conference, Hilton Head Island, SC, 2007.
  4. Y. Lei, C. Cao, E. Cliff, N. Hovakimyan, A. Kurdila, Design of an L1 Adaptive Controller for an Air-breathing Hypersonic Vehicle Model with Unmodelled Dynamics, AIAA 2007-6527, In Proceedings of AIAA Guidance, Navigation and Control Conference, Hilton Head Island, SC, 2007.
  5. C. Cao, N. Hovakimyan, Effect of Non-zero Initialization Error on the Performance Bounds in L1 Adaptive Control Architecture, AIAA-2007-6645, In Proceedings of AIAA Guidance, Navigation and Control Conference, Hilton Head Island, SC, 2007.
  6. D. Li, V. Patel, C. Cao, N. Hovakimyan, K. Wise, Optimization of the Time-Delay Margin of L1 Adaptive Controller via the Design of the Underlying Filter, AIAA 2007-6646,  In Proceedings of AIAA Guidance, Navigation and Control Conference, Hilton Head Island, SC, 2007.
  7. V. Patel, C. Cao, N. Hovakimyan, K. Wise, E. Lavretsky, L1 Adaptive Controller for Tailless Unstable Aircraft in the Presence of Unknown Actuator Failures, AIAA 2007-6314, In Proceedings of AIAA Guidance, Navigation and Control Conference, Hilton Head Island, SC, 2007.
  8. I. Kaminer, O. Yakimenko, V. Dobrokhodov, A. Pascoal, N. Hovakimyan, C. Cao, A. Young, V. Patel, Coordinated Path Following for Time-Critical Missions of Multiple UAVs via Adaptive Output Feedback Controllers, AIAA 2007-6409, In Proceedings of AIAA Guidance, Navigation and Control Conference, Hilton Head Island, SC, 2007.
  9. V. Dobrokhodov, I. Kaminer, K. Jones, I. Kitsios, C. Cao, L. Ma, N. Hovakimyan, C. Woolsey, Rapid Motion Estimation of a Target Moving with  Time-Varying Velocity, AIAA-2007-6746,  In Proceedings of AIAA Guidance, Navigation and Control Conference, Hilton Head Island, SC, 2007.
  10. L. Ma, C. Cao, N. Hovakimyan, C. Woolsey, V. Dobrokhodov, I. Kaminer, Development of a Vision-Based Guidance Law for Tracking a Moving Target with Time-Varying Velocity, AIAA-2007-6744, In Proceedings of AIAA Guidance, Navigation and Control Conference, Hilton Head Island, SC, 2007.
  11. J. Wang, V. Patel, C. Cao, N. Hovakimyan, E. Lavretsky, Verifiable L1 Adaptive Controller for Aerial Refueling, AIAA 2007-6313, In Proceedings of AIAA Guidance, Navigation and Control Conference, Hilton Head Island, SC,  2007.
  12. E. Lavretsky, N. Hovakimyan, C. Cao, Adaptive Design for Uncertain Systems with Nonlinear-in-Control Dynamics, AIAA-2007-6503,  In Proceedings of AIAA Guidance, Navigation and Control Conference, Hilton Head Island, SC, 2007.
  13. L. Ma, C. Cao, N. Hovakimyan, Fast Estimation for Range Identification in the Presence of Unknown Motion Parameters, In Proceedings of International Conference on Informatics in Control, Automation & Robotics, Angers, France, 2007.
  14. D. M. Stipanovic, A. Melikyan, N. Hovakimyan, Liapunov-like Sufficient Conditions for the Guaranteed Capture or Evasion in Multi-Player Differential Games, In Proceedings of SIAM Conference on Control and Its Applications, San Francisco, CA, 2007.
  15. I. Kaminer, N. Hovakimyan, V. Patel, C. Cao, A. Young, A. Pascoal, Time-Critical Coordinated Path Following for Multiple UAVs via L1  Adaptive Output Feedback Controllers, In Proceedings of  European Control Conference, Kos, Greece, 2007.
  16. C. Cao, N. Hovakimyan, A Novel Neural Network L1 Adaptive Control Architecture with Guaranteed Transient Performance, In Proceedings of European Control Conference, Kos, Greece, 2007.
  17. C. Cao, N. Hovakimyan, Guaranteed Transient Performance with L1 Adaptive Controller for Parametric Strict Feedback Systems, In Proceedings of American Control Conference, New York, NY, pp. 4786-4791, 2007.
  18. E. Lavretsky, C. Cao, N. Hovakimyan, On Exponential Stability of Gradient Systems, In Proceedings of American Control Conference, New York, NY, pp. 6003-6008, 2007.
  19. L. Ma, C. Cao, N. Hovakimyan, W. Dixon, C. Woolsey, Range Identification in the Presence of Unknown Motion Parameters for Perspective Vision Systems, In Proceedings of American Control Conference, New York, NY, pp. 972-977, 2007.
  20. V. Patel, C. Cao, N. Hovakimyan, K. Wise, E. Lavretsky, Application of L1 Adaptive Controller to Unstable Tailless Aircraft, In Proceedings of American Control Conference, New York, NY, pp. 5272-5277, 2007.
  21. C. Cao, N. Hovakimyan, Guaranteed Transient Performance with L1 Adaptive Controller for Systems with Unknown Time-varying Parameters: Part I, In Proceedings of American Control Conference, New York, NY, pp. 3925-3930, 2007.
  22. C. Cao, N. Hovakimyan, Stability Margins of L1 Adaptive Controller, Part II, In Proceedings of American Control Conference, New York, NY, pp. 3931-3936, 2007.
  23. C. Cao, N. Hovakimyan, L1 Adaptive Output Feedback Controller for Systems with Time-varying Unknown Parameters and Bounded Disturbances, In Proceedings of American Control Conference, New York, NY, pp. 486-491, 2007.
  24. C. Cao, N. Hovakimyan, L1 Adaptive Output Feedback Controller for Systems of Unknown Dimension, In Proceedings of American Control Conference, New York, NY, pp. 1191-1196, 2007.
  25. C. Cao, N. Hovakimyan, I. Kaminer, V. Patel, V. Dobrokhodov, Stabilization of Cascaded Systems via L1 Adaptive Controller with Application to a UAV Path Following Problem and Flight Test Results, In Proceedings of American Control Conference, New York, NY, pp. 1787-1792, 2007.
  26. L. Techy, K. Reddy, C. Woolsey, C. Cao, N. Hovakimyan, Nonlinear Control of a Novel Two-Link Pendulum,  In Proceedings of American Control Conference, New York, NY, pp. 19-24, 2007.
  27. J. Wang, V. Patel, C. Woolsey, N. Hovakimyan, D. Schmale, L1 Adaptive Control of a UAV for Aerobiological Sampling,   In Proceedings of American Control Conference, New York, NY, pp. 4660-4665, 2007.

 

2006

 

  1. N. Hovakimyan, E. Lavretsky, C. Cao, Adaptive Dynamic Inversion via Time-Scale Separation, In Proceedings of 45th IEEE Conference on Decision and Control, San Diego, CA, pp. 1075-1080, 2006.
  2. L. Ma, V. Stepanyan, C. Cao, I. Faruque, C. Woolsey, N. Hovakimyan, Flight Test Bed for Visual Tracking of Small UAVs Using a Gimbaled Camera, AIAA-2006-6609, In Proceedings of AIAA Guidance, Navigation and Control Conference, Keystone, CO, 2006.
  3. A. Young, C. Cao, N. Hovakimyan, E. Lavretsky, An Adaptive Approach to Nonaffine Control Design for Aircraft Applications, AIAA-2006-6343, In Proceedings of AIAA Guidance, Navigation and Control Conference, Keystone, CO, 2006.
  4. V. Stepanyan, N. Hovakimyan, Visual Tracking of a Maneuvering Target, AIAA-2006-6717, In Proceedings of AIAA Guidance, Navigation and Control Conference, Keystone, CO, 2006.
  5. C. Cao, N. Hovakimyan, J. Evers, Active Control of Visual Sensor for Aerial Tracking, AIAA-2006-6610, In Proceedings of AIAA Guidance, Navigation and Control Conference, Keystone, CO, 2006.
  6. C. Cao, N. Hovakimyan, E. Lavretsky, Application of L1 Adaptive Controller to Wing Rock, AIAA-2006-6426, In Proceedings of AIAA Guidance, Navigation and Control Conference, Keystone, CO, 2006.
  7. C. Cao, V. Patel, C. K. Reddy, N. Hovakimyan, E. Lavretsky, K. Wise, Are the Phase and Time-delay Margins Always Adversely Affected by High-Gain? AIAA-2006-6347, In Proceedings of AIAA Guidance, Navigation and Control Conference, Keystone, CO, 2006.
  8. J. Wang, V. Patel, C. Cao, N. Hovakimyan, E. Lavretsky, L1 Adaptive Neural Network Controller for Autonomous Aerial Refueling with Guaranteed Transient Performance, AIAA-2006-6206, In Proceedings of AIAA Guidance, Navigation and Control Conference, Keystone, CO, 2006.
  9. E. Lavretsky, N. Hovakimyan, Stable Adaptation in the Presence of Multiple Actuator Constraints with Applications to Flight Control, AIAA-2006-6342, In Proceedings of AIAA Guidance, Navigation and Control Conference, Keystone, CO, 2006.
  10. R. W. Beard, N. Knoebel, C. Cao, N. Hovakimyan, J. Mathews, An L1 Adaptive Pitch Controller for Miniature Air Vehicles, AIAA-2006-6777, In Proceedings of AIAA Guidance, Navigation and Control Conference, Keystone, CO, 2006.
  11. D. M. Stipanović, A. Melikyan, N. Hovakimyan, Some Sufficient Conditions for Multi-Player Pursuit-Evasion Games with Continuous and Discrete Observations, In Proceedings of XII International Symposium on Dynamic Games and Applications, Sophia Antipolis, France, 2006.
  12. A. Melikyan, N. Hovakimyan, A. Akhmetzhanov, Application of Singular Characteristics for Image Processing, In Proceedings of XII International Symposium on Dynamic Games and Applications, Sophia Antipolis, France, 2006.
  13. K. A. Wise, E. Lavretsky, N. Hovakimyan, Adaptive Control in Flight:  Theory, Application, and Open Problems, In Proceedings of American Control Conference, Minneapolis, MN, pp. 5966-5971, 2006.
  14. N. Hovakimyan, E. Lavretsky, C. Cao, Dynamic Inversion of Multi-input Nonaffine Systems via Time-Scale Separation, In Proceedings of American Control Conference, pp. 3594-3599, 2006.
  15. C. Cao, N. Hovakimyan, Design and Analysis of a Novel L1 Adaptive Controller, Part I: Control Signal and Asymptotic Stability, In Proceedings of American Control Conference, Minneapolis, MN, pp. 3397-3402, 2006.
  16. C. Cao, N. Hovakimyan, Design and Analysis of a Novel L1 Adaptive Controller, Part II: Guaranteed Transient Performance, In Proceedings of American Control Conference, Minneapolis, MN, pp. 3403-3408, 2006.
  17. J. Wang, C. Cao, N. Hovakimyan, E. Lavretsky, Novel L1 Adaptive Control Approach to Autonomous Aerial Refueling with Guaranteed Transient Performance, In Proceedings of American Control Conference, Minneapolis, MN, pp. 3569-3574, 2006.
  18. A. Young, C. Cao, N. Hovakimyan, E. Lavretsky, Control of a Nonaffine Double-Pendulum System via Dynamic Inversion and Time-Scale Separation, In Proceedings of American Control Conference, Minneapolis, MN, pp. 1820-1825, 2006.
  19. V. Stepanyan, N. Hovakimyan, A Guidance Law for Visual Tracking of a Maneuvering Target, In Proceedings of American Control Conference, Minneapolis, MN, pp. 2850-2855, 2006.

 

2005

 

  1. E. Lavretsky, N. Hovakimyan, Adaptive Compensation of Control Dependent Modeling Uncertainties using Time-Scale Separation, In Proceedings of 44th IEEE Conference on Decision and Control and European Control Conference, Seville, Spain, pp. 7750-7755, 2005.
  2. V. Stepanyan, N. Hovakimyan, Robust Adaptive Observer Design for Uncertain Systems with Bounded Disturbances, In Proceedings of 44th IEEE Conference on Decision and Control and European Control Conference, Seville, Spain, pp. 2230-2235, 2005.
  3. V. Stepanyan, N. Hovakimyan, C. Woolsey, Adaptive Output Feedback Control of a Spheroidal Underactuated Underwater Vehicle, In Proceedings of Oceans MTS/IEEE, Washington DC, Sept.19-23, 2005.
  4. K. A. Wise, E. Lavretsky, N. Hovakimyan, Adaptive Control in Flight:  Theory, Application, and Open Problems, The 13th Yale workshop on Adaptive and Learning Systems, May 30- June 1, 2005. (Invited paper)
  5. A. Ajami, N. Hovakimyan, E. Lavretsky, Design Examples: Adaptive Tracking Control in the Presence of Input Constraints for a Generic Missile and a Fighter Aircraft, AIAA-2005-6444, In Proceedings of AIAA Guidance, Navigation and Control Conference, San Francisco, CA, 2005.
  6. V. Stepanyan, N. Hovakimyan, An Adaptive Disturbance Rejection Controller for Visual Tracking of a Maneuvering Target, AIAA-2005-6000, In Proceedings of AIAA Guidance, Navigation and Control Conference, San Francisco, CA, 2005.
  7. C. Cao, J. Wang, N. Hovakimyan, Adaptive Control with Unknown Parameters in Reference Input, International Symposium on Intelligent Control and 13th Mediterranean Conference on Control and Automation, pp. 225-230, Lymassol, Cyprus, June 27-29, 2005.
  8. T. Hayakawa, W. Haddad, N. Hovakimyan, A New Characterization of Stable Neural Network Control for Discrete-Time Uncertain Systems, In Proceedings of 16th IFAC World Congress, Prague, Czech Republic, 2005.
  9. N. Hovakimyan, E. Lavretsky, A. Sasane, Stabilization of Nonaffine Nonlinear Systems using Time-Scale Separation, In Proceedings of 16th IFAC World Congress, Prague, Czech Republic, 2005.
  10. N. Hovakimyan, E. Lavretsky, A. Sasane, Dynamic Inversion for Nonaffine in Control Systems via Time-Scale Separation: Part I, In Proceedings of American Control Conference, pp. 3542-3547, Portland, OR, 2005.
  11. E. Lavretsky, N. Hovakimyan, Adaptive Dynamic Inversion for Nonaffine in Control Systems via Time-Scale Separation: Part II, In Proceedings of American Control Conference, pp. 3548-3553, Portland, OR, 2005.
  12. E. Lavretsky, N. Hovakimyan, Positive mu-modification for Stable Adaptation in Dynamic Inversion Based Adaptive Control with Input Saturation, In Proceedings of American Control Conference, pp. 3373-3378, Portland, OR, 2005.
  13. C. Cao, N. Hovakimyan, Vision Based Air-to-Air Tracking using Intelligent Excitation, In Proceedings of American Control Conference, pp. 5091-5096, Portland, OR, 2005.
  14. C. Cao, A. Annaswamy, N. Hovakimyan, A Polynomial Adaptive Controller for Discretely Parameterized Systems, In Proceedings of American Control Conference, pp. 2070-2075, Portland, OR, 2005.
  15. A. Melikyan, A. Akhmetzhanov and N. Hovakimyan, A Remark on Non-Smooth Viscosity Solutions to Initial Value and Terminal Value Problems for Hamilton-Jacobi Equation, In Proceedings of American Control Conference, pp. 864-869, Portland, OR, 2005.
  16. T. Hayakawa, W. Haddad, N. Hovakimyan, On the Stability of Neuro-Adaptive Control for Nonlinear Uncertain Dynamical Systems, In Proceedings of American Control Conference, pp. 1301-1306, Portland, OR, 2005.

 

2004

 

  1. D. Hasanyan, N. Hovakimyan, A. Sasane, V. Stepanyan, Analysis of Nonlinear Thermoelastic Plate Equations, In Proceedings of 43rd IEEE Conference on Decision and Control, pp. 1514-1519, Bahamas, 2004.
  2. V. Stepanyan, E. Lavretsky, N. Hovakimyan, Aerial Refueling Autopilot Design Methodology: Application to F-16 Aircraft, AIAA-2004-5321, In Proceedings of AIAA Guidance, Navigation and Control Conference and Exhibit, Providence, Rhode Island, Aug. 16-19, 2004.
  3. T. Hayakawa, W. Haddad, N. Hovakimyan, Bailey, Neural Network Adaptive Dynamic Output Feedback Control for Nonlinear Nonnegative Systems Using Delayed Outputs, In Proceedings of American Control Conference, Boston, MA, pp. 4505 – 4510, 2004.
  4. E. Lavretsky, N. Hovakimyan, Positive mu-modification for Stable Adaptation in the Presence of Input Constraints, In Proceedings of American Control Conference, Boston, MA, pp. 2545 – 2550, 2004.
  5. N. Hovakimyan, E. Lavretsky, B.-J. Yang, A. Calise, Coordinated decentralized adaptive output feedback control of interconnected systems, In Proceedings of American Control Conference, Boston, MA, pp. 4279 – 4284, 2004.
  6. N. Kim, A. Calise, N. Hovakimyan, Several Extensions in Methods for Adaptive Output Feedback Control, In Proceedings of American Control Conference, Boston, MA, pp. 2421 – 2426, 2004.
  7. B.-J. Yang, A. Calise, N. Hovakimyan, Augmenting Adaptive Output Feedback Control to an Uncertain Nonlinear System with Actuator Nonlinearities, In Proceedings of American Control Conference, Boston, MA, pp. 4675 – 4680, 2004.

 

2003

 

  1. T. Hayakawa, W. Haddad, J. Bailey, N. Hovakimyan, Passivity-Based Neural Network Adaptive Output Feedback Control for Nonlinear Nonnegative Dynamical Systems. In Proceedings of 42nd IEEE Conference on Decision and Control, Maui, HI, pp. 5697 – 5702, 2003.
  2. N. Hovakimyan, E. Lavretsky, A. Calise, R. Sattigeri, Decentralized Adaptive Output Feedback Control via Input/Output Inversion, In Proceedings of 42nd IEEE Conference on Decision and Control, Maui, HI, pp. 1699 – 1704, 2003.
  3. B. B. King, N. Hovakimyan, An Adaptive Approach to Control of Distributed Parameter Systems, In Proceedings of 42nd IEEE Conference on Decision and Control, Maui, HI, pp. 5715 – 5720, 2003.
  4. V. Stepanyan, E. Lavretsky, N. Hovakimyan, A Differential Game Approach to Aerial Refueling Autopilot Design, In Proceedings of 42nd IEEE Conference on Decision and Control, Maui, HI, pp. 4920 – 4925, 2003.
  5. B.-J. Yang, N. Hovakimyan, A. Calise, Output Feedback Control of an Uncertain System using an Adaptive Observer, In Proceedings of 42nd IEEE Conference on Decision and Control, Maui, HI, pp. 1705 – 1710, 2003.
  6. A. Melikyan, N. Hovakimyan, Y. Ikeda, Dynamic Programming Approach to a Minimum Distance Optimal Control Problem, In Proceedings of 42nd IEEE Conference on Decision and Control, Maui, HI, pp. 239 – 244, 2003.
  7. B.-J. Yang, N. Hovakimyan, A. Calise, J. Craig, Experimental Validation of an Augmenting Approach to Adaptive Control of Uncertain Nonlinear Systems, AIAA-2003-5715, In Proceedings of AIAA Guidance, Navigation, and Control Conference and Exhibit, Austin, Texas, Aug. 11-14, 2003.
  8. E. Lavretsky, N. Hovakimyan, A. Calise, V. Stepanyan, Vortex Seeking Formation Flight Neurocontrol, AIAA-2003-5726, In Proceedings of AIAA Guidance, Navigation, and Control Conference and Exhibit, Austin, Texas, Aug. 11-14, 2003.
  9. N. Hovakimyan, A. Calise, Extending Linear Designs to Nonlinear Systems via Adaptive Architectures. In Proceedings of American Control Conference, Denver, CO, pp. 555 – 560, 2003.
  10. T. Hayakawa, W. Haddad, N. Hovakimyan, Neural Network Adaptive Control for Nonlinear Nonnegative Dynamical Systems. In Proceedings of American Control Conference, Denver, CO, pp. 561 – 566, 2003.
  11. E. Lavretsky, N. Hovakimyan, A. Calise, Adaptive Extremum Seeking Control Design. In Proceedings of American Control Conference, Denver, CO, pp. 567 – 572, 2003.
  12. A. Kutay, A. Calise, N. Hovakimyan, Adaptive Output Feedback Control with Reduced Sensitivity to Sensor Noise. In Proceedings of American Control Conference, Denver, CO, pp. 5141 – 5146, 2003.

 

2002

 

  1. N. Hovakimyan, A. Calise, V. Madyastha, An Adaptive Observer Design Methodology for Bounded Nonlinear Processes. In Proceedings of IEEE 41st Conference on Decision and Control, Las Vegas, NV, pp. 4700 – 4705, 2002.
  2. N. Hovakimyan, B.-J. Yang, A. Calise, An Adaptive Output Feedback Control Methodology for Non-Minimum Phase Systems. In Proceedings of IEEE 41st Conference on Decision and Control, Las Vegas, NV, pp. 949 – 954, 2002.
  3. A. Melikyan, N. Hovakimyan, Some Variation Calculus Problems in Dynamic Games on 2D Surfaces, International Congress of Mathematicians, Satellite Conference in “Game Theory and Applications”, 2002.
  4. A. Kutay, A. Calise, M. Idan, N. Hovakimyan, Experimental Results on Adaptive Output Feedback Control using Laboratory Model Helicopter. AIAA-2002-4921, In Proceedings of AIAA Guidance, Navigation, and Control Conference and Exhibit, Monterey, California, Aug. 5-8, 2002.
  5. M. Idan, A. Calise, N. Hovakimyan, An Adaptive Output Feedback Control Methodology: Theory and Practical Implementation Aspects. AIAA-2002-4918, In Proceedings of AIAA Guidance, Navigation, and Control Conference and Exhibit, Monterey, California, Aug. 5-8, 2002.
  6. N. Hovakimyan, A. Calise, Adaptive Output Feedback Control of Uncertain Multi-input Multi-output Systems using Single Hidden Layer Neural Networks. In Proceedings of American Control Conference, Anchorage, AL, pp. 1555 – 1560, 2002.

 

2001

 

  1. A. Calise, N. Hovakimyan, M. Idan, A SPR Approach for Adaptive Output Feedback Control with Neural Networks. In Proceedings of IEEE 40th Conference on Decision and Control, pp. 3134 – 3139, 2001.
  2. N. Hovakimyan, N. Kim, A. Calise, J.V.R. Prasad, E. Corban, Adaptive Output Feedback for High-Bandwidth Control of an Unmanned Helicopter, AIAA-2001-4181, In Proceedings of
    AIAA Guidance, Navigation, and Control Conference and Exhibit, Montreal, Canada, Aug. 6-9, 2001.
  3. N. Hovakimyan, F. Nardi, A. Calise, A Novel Observer based Adaptive Output Feedback Approach for Control of Uncertain Systems American Control Conference, pp. 2444 – 2449, 2001.
  4. F. Nardi, N. Hovakimyan, A. Calise, Decentralized control of Large-Scale systems using Single Hidden Layer Neural Networks. In Proceedings of American Control Conference, pp. 3122 – 3127, 2001.

 

2000

 

  1. N. Hovakimyan, A. Melikyan, Bifurcations in Pursuit-Evasion Games on One-Parameter Family of Surfaces. IX International Symposium on Dynamic Games and Applications, Adelaida, South Australia, Preprint Volume, pp.247-262, 2000.
  2. N. Hovakimyan, A. Melikyan, Optimal Pursuit-Evasion Paths in a Game on Complete Cone. In Proceedings of American Control Conference, Washington, DC, pp. 3865 – 3869, 2000.
  3. N. Hovakimyan, H. Lee, A. Calise, On Approximate NN Realization of Unknown Dynamic Function from Input-Output History. In Proceedings of American Control Conference, Washington, DC, pp. 919 – 923, 2000.
  4. A. Calise, N. Hovakimyan, H. Lee, Adaptive Output Feedback Control of Nonlinear Systems using Neural Networks. In Proceedings of American Control Conference, Washington, DC, pp. 3153 – 3157, 2000.

 

1991-1999

 

    1. N. Hovakimyan, R. Rysdyk, A. Calise, Dynamic Neural Networks for Output Feedback Control. In Proceedings of 38th Conference on Decision and Control, Phoenix, AZ, pp.1685 – 1690, 1999.
    2. P. Bernhard, N. Hovakimyan, A Certainty equivalence principle for dynamic minimax team problems. In Proceedings of VIII International Symposium on Dynamic Games and Applications, Maastricht, The Netherlands, July 6-8, 1998.
    3. N. Hovakimyan, L. Harutunian, Geometrical Properties of Game Problems on a Two-Dimensional Hyperboloid. In Proceedings of Sixth Viennese Workshop on Optimal Control, Dynamic Games, Nonlinear Dynamics and Adaptive Systems Theory and Applications in Economics and OR/MS, Vienna, May 21-23, 1997.
    4. N. Hovakimyan, Differential Games with Simple Motion on a Rotation Surface. In Proceedings of VII International Symposium on Dynamic Games and Applications, Kanagawa, Japan, December 16-18, 1996 (best paper award).
    5. N. Hovakimyan, A. Melikyan, Two games with simple motion on the cone. In Proceedings of Fifth International Symposium on Dynamic Games and Applications. Grimentz, Valais, Switzerland, July 15-17, Preprint volume, 1992.
    6. A. Melikyan and N. Hovakimyan, Game Problem of Simple Pursuit in the Manifolds. In Proceedings of International Conference on Game Theory, Florence, June 25-27, 1991.
    7. A. Melikyan and N. Hovakimyan, Singular Trajectories in the Game Problem of Simple Pursuit in the Manifold. In Proceedings of VII Union Conference “Control in Mechanical Systems”, Ekaterinburg, June 12-14, 1990.

Preprints, research reports

 

  1. Altman, T. Basar, N. Hovakimyan, Worst-Case Rate-Based Flow Control with an ARMA Model of the Available Bandwidth. Research Report INRIA, Sophia Antipolis, France, 1997.
  2. Bernhard, N. Hovakimyan, Nonlinear Robust Control and Minimax Team Problems. Research Report INRIA, Sophia Antipolis, France 1997.
  3. Melikyan, N. Hovakimyan, Differential Games of Simple Pursuit and Approach on Manifolds. Preprint, Yerevan, 44p., 1993.
  4. Melikyan and N. Hovakimyan, Game Problem of Simple Pursuit in the Manifolds. PreprintN489, Institute for Problems in Mechanics, RAS, Moscow, 44p., 1991.