Professor, University Scholar and Schaller Faculty Scholar
Department of Mechanical Science and Engineering
Mechanical Engineering Building
1206 West Green Street, Room 223
Urbana, IL 61801
nhovakim (at) illinois (dot) edu

Biography

Naira Hovakimyan received her MS degree in Theoretical Mechanics and Applied Mathematics in 1988 from Yerevan State University in Armenia. She got her Ph.D. in Physics and Mathematics in 1992, in Moscow, from the Institute of Applied Mathematics of Russian Academy of Sciences, majoring in optimal control and differential games. In 1997 she has been awarded a governmental postdoctoral scholarship to work in INRIA, France. In 1998 she was invited to the School of Aerospace Engineering of Georgia Tech, where she worked as a research faculty member until 2003. In 2003 she joined the Department of Aerospace and Ocean Engineering of Virginia Tech, and in 2008 she moved to University of Illinois at Urbana-Champaign, where she is a professor, university scholar and Schaller faculty scholar of Mechanical Science and Engineering. She has co-authored a book and more than 250 refereed publications. She is the recipient of the SICE International scholarship for the best paper of a young investigator in the VII ISDG Symposium (Japan, 1996), and also the 2011 recipient of AIAA Mechanics and Control of Flight award. She is an associate fellow and life member of AIAA, a Senior Member of IEEE, and a member of SIAM, AMS and ISDG. Her current interests are in the theory of robust adaptive control and estimation, control in the presence of limited information, networks of autonomous systems, game theory and applications of those in safety-critical systems of aerospace, mechanical, electrical and biomedical engineering.
 

Membership in Professional Organizations

  • American Mathematical Society (AMS)
  • Society of Industrial and Applied Mathematics (SIAM)
  • International Society of Dynamic Games (ISDG)
  • Institute of Electrical and Electronics Engineers (IEEE) (Senior Member)
  • American Institute of Aeronautics and Astronautics (AIAA) (Associate Fellow)

 

Awards and Recognitions

  • 2011 Engineering Faculty Leadership Forum, UIUC
  • 2011 University scholar
  • 2011 AIAA Mechanics and Control of Flight award
  • 2011 Semiplenary Speaker in 23rd CCDC, Mianyang, China
  • 2010 Keynote speaker in ICNPAA 2010 World Congress, Sao Jose dos Campos, Brazil
  • 2010 Plenary speaker in 3rd ISSCAA, Harbin, China
  • 2009 Outstanding reviewer for AIAA Journal of Guidance, control and Dynamics
  • 2009 Plenary speaker in IASTED Conference on Identification and Control
  • 2008 Outstanding reviewer for AIAA Journal of Guidance, control and Dynamics
  • 2008 Golden Screw Award, bestowed by Virginia Tech aerospace and ocean engineering outgoing seniors
  • 2008 Dean’s Award for Research Excellence, Virginia Tech
  • 2008 Certificate for Distinguished Service to AIAA Guidance, Navigation and Control Technical Committee (2004-2008)
  • 2007 Pride@Boeing Award Recipient
  • 2007 Plenary speaker in VII SIAM Conference on Control and Its Applications
  • 2006 College of Engineering Faculty Fellow
  • 2005 Pride@Boeing Award Recipient
  • 2004 Pride@Boeing Award Recipient
  • 2000, 2006, 2007 Best Presentation Award, American Control Conference
  • 1996 Best paper, SICE International Award, VII International Symposium on Dynamic Games and Applications, Japan
  • 1998 Travel grant of ISF (International Science Foundation of George Soros), VIII International Symposium on Dynamic Games and Applications, Maastricht, the Netherlands
  • 1994 Principal Investigator, 2nd long-term grant of ISF
  • 1993 1st grant of ISF for three papers in selected journals

 

Patents

  • 2009 Patent filed “Adaptive Control with Guaranteed Performance and with Robustness / Stability Margins” (with C. Cao and E. Xargay)
  • 2009 (Sept. 22) Patent #7593793 “Adaptive Control in the Presence of Input Constraints” (with E. Lavretsky)
  • 2007 (Oct. 2) Patent #7277764, GB2423377, GB 2423376, GB2412976, “An Improved Method for Adding Adaptation to an Existing Control System Applicable to Non-Minimum Phase Nonlinear Systems” (with A. Calise, B.-J. Yang)
  • 2002 Patent “Adaptive Observer and Related Methods” (with A. Calise and V. Madyastha) (published 20050137724)
  • 2005 (June 7) Patent #6904422 “Adaptive Control System Having Direct Output Feedback and Related Apparatuses and Methods” (with Anthony Calise, Moshe Idan)

 

Publications

Book
    N. Hovakimyan and 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. E. Xargay, N. Hovakimyan, V. Dobrokhodov, I. Kaminer, C. Cao, I. Gregory, “L1 Adaptive Control in Flight,”, in Intelligent Systems: AIAA Progress in Aeronautics and Astronautics, 2012.
  2. X. Wang, N. Hovakimyan, “Performance Prediction in Uncertain Multi-Agent Systems Using L1 Adaptation-Based Distributed Event-Triggering,” in Distributed Decision Making and Control: Lecture Notes in Control and Information Sciences, Springer Verlag, 2011.
  3. 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: Annals of the International Society of Dynamic Games, Vol. 10, pp. 133-145, 2009.
  4. P. Bernhard, N. Hovakimyan, “A Certainty Equivalence Principle and Minimax Team Problems,” in Advances in Dynamic Games and Applications: Annals of the International Society of Dynamic Games, Vol. 6, 2001.
  5. 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: Annals of the International Society of Dynamic Games, Vol. 5, pp.3-29, 2000.
  6. 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. 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,” submitted to AIAA Journal of Guidance, Control and Dynamics, 2011.
  2. E. Xargay, N. Hovakimyan, C. Cao, “L1 Adaptive Controller for Uncertain Multi-Input Multi-Output Systems in the Presence of Uncertain Nonlinear Cross-Coupling,” submitted to IEEE Transactions on Automatic Control, 2011.
  3. X. Wang, N. Hovakimyan, “L1 Adaptive Controller for Nonlinear Reference Systems,” submitted to Systems and Control Letters, 2011.
  4. X. Wang, Y. Sun, N. Hovakimyan, “Asynchronous Task Execution in Decentralized Event-Triggered Networked Control Systems,” submitted to Systems and Control Letters, 2010.
  5. D. Li, N. Hovakimyan, “Bode-like Integral for Continuous-Time Closed-Loop Systems in the Presence of Limited Information,” submitted to IEEE Transactions on Automatic Control, 2010.
  6. D. Li, N. Hovakimyan, “Bode-Like Integral for Stochastic Switched Systems,” submitted to Automatica, 2011.
  7. D. Li, N. Hovakimyan, “Positive Invariant Set for L1 Adaptive Controller in the Presence of Input Saturation,” in International Journal of Adaptive Control and Signal Processing, 2012.
  8. E. Xargay, V. Dobrokhodov, I. Kaminer, A. Pascoal, N. Hovakimyan, C. Cao, “Time-Coordinated Path Following of Multiple Heterogeneous Vehicles over Time-Varying Networks,” in IEEE Control Systems Magazine, 2012.
  9. H. Sun, N. Hovakimyan, T. Basar, “L1 Adaptive Controller for Uncertain Nonlinear Multi-Input Multi-Output Systems with Input Quantization,” in IEEE Transactions on Automatic Control, vol. 57, No. 1, 2012.
  10. N. Hovakimyan, C. Cao, E. Kharisov, E. Xargay, I. Gregory, “L1 Adaptive Controller for Safety Critical Systems: Guaranteed Robustness with Fast Adaptation,” in IEEE Control Systems Magazine, October, pp. 54-104, 2011.
  11. 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,” in AIAA Journal of Guidance, Control and Dynamics, vol. 34, No. 5, pp.1311-1328, 2011.
  12. V. Kulkarni, A. Paranjape, K. R. Ghusinga, N. Hovakimyan, “Synthesis of Robust Tunable Oscillators using Mitogen Activated Protein Kinase Cascades,” in Systems and Synthetic Biology, vol. 4, No. 4, pp. 331-341, 2010.
  13. S.-J. Yoo, N. Hovakimyan, C. Cao, “Decentralized L1 Adaptive Control for Large-scale Nonlinear Systems with Interconnected Unmodelled Dynamics,” in IET Control Theory and Applications, vol. 4, No.10, pp. 1972-1988, 2010.
  14. 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,” in AIAA Journal of Guidance, Control and Dynamics, vol. 33, No. 3, pp. 834-852, 2010.
  15. D. Stipanović, A. Melikyan, N. Hovakimyan, “Guaranteed Strategies for Nonlinear Multi-Player Pursuit-Evasion Games,” in International Game Theory Review, vol. 12, No. 1, pp. 1-17, 2010.
  16. 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.
  17. 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,” in AIAA Journal of Guidance, Control and Dynamics, vol. 33, No. 2, pp. 550-564, 2010.
  18. C. Cao, N. Hovakimyan, “Stability Margins of L1 Adaptive Control Architecture,” in IEEE Transactions on Automatic Control, vol. 55, No. 2, pp. 480-487, 2010.
  19. J. Wang, N. Hovakimyan, C. Cao, “Verifiable Adaptive Flight Control: UCAV and Aerial Refueling,” in AIAA Journal of Guidance, Control and Dynamics, vol. 33, No. 1, pp. 75-87, 2010.
  20. C. Cao, N. Hovakimyan, J. Evers, “Active Control of Visual Sensor for Navigation and Guidance,” in Journal of Computational Management Science, Springer Operation Research and Decision Theory, No. 7, pp. 85-110, 2010.
  21. A. Dippold, L. Ma, N. Hovakimyan, “Vision-Based Obstacle Avoidance of Wheeled Robots Using Fast Estimation,” in AIAA Journal of Guidance, Control and Dynamics, vol. 32, No. 6, pp. 1931-1937, 2009.
  22. C. Cao, N. Hovakimyan, “L1 Adaptive Output Feedback Controller for Non-Strictly Positive Real Systems: Missile Longitudinal Autopilot Design,” in AIAA Journal of Guidance, Control and Dynamics, vol. 32, No. 3, pp. 717-726, 2009.
  23. V. Patel, C. Cao, N. Hovakimyan, K. Wise, E. Lavretsky, “L1 Adaptive Controller for Tailless Unstable Aircraft in the Presence of Unknown Actuator Failures,” in International Journal of Control, vol. 82, No. 4, pp. 705-720, 2009.
  24. C. Cao, N. Hovakimyan, “A Low-pass Adaptive Control Design with Improved Transient Performance,” in Journal of Computational Management Science, Springer Operation Research and Decision Theory, 2008.
  25. N. Hovakimyan, E. Lavretsky, C. Cao, “Dynamic Inversion for Multivariable Nonaffine-in-Control Systems via Time-Scale Separation,” in International Journal of Control, vol. 81, No.12, pp. 1960-1967, 2008.
  26. N. Hovakimyan, E. Lavretsky, C. Cao, “Adaptive Dynamic Inversion for Nonaffine-in-Control Systems via Time-Scale Separation,” in IEEE Transactions on Neural Networks, vol. 19, No.10, pp. 1702-1711, 2008.
  27. C. Cao, N. Hovakimyan, “Vision-based Tracking using Intelligent Excitation,” in International Journal of Control, vol. 81, No.11, pp. 1763-1778, 2008.
  28. 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,” in International Journal of Control, vol. 81, No. 7, pp. 1148-1162, 2008.
  29. C. Cao, N. Hovakimyan, “L1 Adaptive Output Feedback Controller for Systems of Unknown Dimension,” in IEEE Transactions on Automatic Control, vol. 53, No. 3, pp. 815-821, 2008.
  30. C. Cao, N. Hovakimyan, “Design and Analysis of a Novel L1 Adaptive Control Architecture with Guaranteed Transient Performance,” in IEEE Transactions on Automatic Control, vol.53, No.2, pp. 586-591, 2008.
  31. J. Wang, V. Patel, C. Cao, N. Hovakimyan, E. Lavretsky, “Novel L1 Adaptive Control Methodology for Aerial Refueling with Guaranteed Transient Performance,” in AIAA Journal of Guidance, Control and Dynamics, vol. 31, No. 1, pp. 182-193, 2008.

 

Conference Papers
2011
  1. K.-K. Kim, E. Kharisov, N. Hovakimyan, “Filter Design for L1 Adaptive output Feedback Controller,” in Proceedings of IEEE 50th IEEE Conference on Decision and Control, Orlando, FL, 2011.
  2. S. Bhattacharya, T. Basar, N. Hovakimyan, “Non-cooperative Strategies for Connectivity Maintenance among Autonomous Mobile Agents,” in Proceedings of IEEE 50th IEEE Conference on Decision and Control, Orlando, FL, 2011.
  3. L. Dapeng, N. Hovakimyan, “Optimal State estimation over Gaussian Channels via Noiseless Feedback,” in Proceedings of IEEE 50th IEEE Conference on Decision and Control, Orlando, FL, 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 L1 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 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.

 

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,” in Proceedings of AIAA Guidance, Navigation and Control Conference, Chicago, IL, AIAA-2009-6064, 2009.
  4. Z. Li, V. Dobrokhodov, N. Hovakimyan, I. Kaminer, “Development and Implementation of L1 Adaptive Gimbal Tracking Loop Onboard of Small UAV,” in Proceedings of AIAA Guidance, Navigation and Control Conference, Chicago, IL, AIAA-2009-5681, 2009.
  5. T. Leman, E. Xargay, G. Dullerud, N. Hovakimyan, T. Wendell, “L1 Adaptive Controller for X-48B Aircraft,” in Proceedings of AIAA Guidance, Navigation and Control Conference, Chicago, IL, AIAA-2009-5619, 2009.
  6. J. Wang, N. Hovakimyan, C. Cao, “L1 Adaptive Augmentation of Baseline Gain-scheduled Controller for Racetrack Maneuver in Aerial Refueling,” in Proceedings of AIAA Guidance, Navigation and Control Conference, Chicago, IL, AIAA-2009-5739, 2009.
  7. I. Gregory, C. Cao, E. Xargay, N. Hovakimyan, “L1 Adaptive Control Design for NASA AirSTAR Flight Test Vehicle,” in Proceedings of AIAA Guidance, Navigation and Control Conference, Chicago, IL, AIAA-2009-5738, 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,” in Proceedings of AIAA Guidance, Navigation and Control Conference, Chicago, IL, AIAA-2009-6188, 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,” inProceedings 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, “L1 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 Adaptive Flight Control: UCAV and Aerial Refueling,” in Proceedings of AIAA Guidance, Navigation and Control Conference, Honolulu, HI, AIAA-2008-6658, 2008.
  2. M. C. Cotting, C. Cao, N. Hovakimyan, R. Kraus, W. Durham, “Simulator Testing of Longitudinal Flying Qualities with L1 Adaptive Controller,” in Proceedings of AIAA Guidance, Navigation and Control Conference, Honolulu, HI, AIAA-2008-6551, 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,” in Proceedings of AIAA Guidance, Navigation and Control Conference, Honolulu, HI, AIAA-2008-7445, 2008.
  4. L. Ma, C. Cao, A. Young, N. Hovakimyan, “Motion Estimation via a Zoom Camera,” in Proceedings of AIAA Guidance, Navigation and Control Conference, Honolulu, HI, AIAA-2008-7446, 2008.
  5. A. Young, L. Ma, N. Hovakimyan, “Vision-Based Obstacle Avoidance of Wheeled Robots using Fast Estimation,” in Proceedings of AIAA Guidance, Navigation and Control Conference, Honolulu, HI, AIAA-2008-7449, 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,” in Proceedings of AIAA Guidance, Navigation and Control Conference, Honolulu, HI, AIAA-2008-6987, 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,” in Proceedings of AIAA Guidance, Navigation and Control Conference, Honolulu, HI, AIAA-2008-6280, 2008.
  8. J. Wang, C. Cao, N. Hovakimyan, R. Hindman, B. Ridgely, “L1 Adaptive Controller for a Missile Longitudinal Autopilot Design,” in Proceedings of AIAA Guidance, Navigation and Control Conference, Honolulu, HI, AIAA-2008-6282, 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 L1 Adaptation,” in Proceedings of AIAA Guidance, Navigation and Control Conference, Honolulu, HI, AIAA-2008-7131, 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 Guidance, Navigation and Control Conference, Honolulu, HI, AIAA-2008-7128, 2008.
  11. C. Cao, N. Hovakimyan, “L1 Adaptive Output Feedback Controller for Non Strictly Positive Real Reference Systems with Applications to Aerospace Examples,” in Proceedings of AIAA Guidance, Navigation and Control Conference, Honolulu, HI, AIAA-2008-7288, 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.

A more detailed list of accomplishments can be found at www.mechse.illinois.edu/research/nhovakim