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2019

Recovery of desired flying characteristics with an l1 adaptive control law: Flight test results on calspan’s vss learjet

Ackerman, K. A., Navarro, J. P., Hovakimyan, N., Cotting, M. C., Duke, D. J., Carrera, M. J., McCaskey, N. C., Esposito, D., Peterson, J. M. & Tellefsen, J. R., Jan 1 2019, AIAA Scitech 2019 Forum. American Institute of Aeronautics and Astronautics Inc, AIAA, (AIAA Scitech 2019 Forum).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Recovery
System stability
Aircraft
Safe handling
Air
2010

Application of L1 adaptive controller to wing rock

Kharisov, E. & Hovakimyan, N., 2010, AIAA Infotech at Aerospace 2010. 2010-3395

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Rocks
Controllers
Aerospace industry
Angle of attack
Uncertainty
2017

VirtualDrone: Virtual sensing, actuation, and communication for attack-resilient unmanned aerial systems

Yoon, M. K., Liu, B., Hovakimyan, N. & Sha, L., Apr 18 2017, Proceedings - 2017 ACM/IEEE 8th International Conference on Cyber-Physical Systems, ICCPS 2017 (part of CPS Week). Association for Computing Machinery, Inc, p. 143-154 12 p. (Proceedings - 2017 ACM/IEEE 8th International Conference on Cyber-Physical Systems, ICCPS 2017 (part of CPS Week)).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Antennas
Communication
Software architecture
Computer hardware
Actuators
2019

Towards resilient UAV: Escape time in GPS denied environment with sensor drift

Yoon, H. J., Wan, W., Kim, H., Hovakimyan, N., Sha, L. & Voulgaris, P. G., Oct 2019, In : IFAC-PapersOnLine. 52, 12, p. 423-428 6 p.

Research output: Contribution to journalConference article

Open Access
Unmanned aerial vehicles (UAV)
Global positioning system
Sensors
State estimation
Kalman filters
2010

Stability margins of L1 adaptive control architecture

Cao, C. & Hovakimyan, N., Feb 1 2010, In : IEEE Transactions on Automatic Control. 55, 2, p. 480-487 8 p., 5373895.

Research output: Contribution to journalArticle

Time delay
Controllers
2013

Cooperative Vision Based Tracking of multiple UAVs

Cichella, V., Kaminer, I., Dobrokhodov, V. & Hovakimyan, N., Sep 16 2013, AIAA Guidance, Navigation, and Control (GNC) Conference. (AIAA Guidance, Navigation, and Control (GNC) Conference).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Unmanned aerial vehicles (UAV)
Decentralized control
Angular velocity
Target tracking
Phase shift
2016

An L1 adaptive backup flight control law for transport aircraft with vertical-tail damage

Sun, D., Choe, R., Xargay, E. & Hovakimyan, N., Jan 1 2016, AIAA Guidance, Navigation, and Control Conference. American Institute of Aeronautics and Astronautics Inc, AIAA, (2016 AIAA Guidance, Navigation, and Control Conference).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Transport aircraft
Aircraft
Aircraft models
NASA
Aerodynamics
2015

Robust regulation of heave-induced pressure oscillations in offshore MPD

Mahdianfar, H., Hovakimyan, N., Pavlov, A. & Aamo, O. M., Jul 1 2015, In : IFAC-PapersOnLine. 28, 6, p. 112-119 8 p.

Research output: Contribution to journalConference article

Oil well drilling
Drilling rigs
Test facilities
Drilling
Tuning
2017

Optimized L1 adaptive controller for trajectory tracking of an indoor quadrotor

Jafarnejadsani, H., Sun, D., Lee, H. & Hovakimyan, N., Jan 1 2017, In : Journal of Guidance, Control, and Dynamics. 40, 6, p. 1415-1427 13 p.

Research output: Contribution to journalArticle

Trajectory Tracking
controllers
trajectory
Trajectories
trajectories
2010

Robustness of ℒ1 adaptive controllers in the gap metric in the presence of nonzero initialization

Li, D., Hovakimyan, N. & Georgiou, T., Dec 1 2010, 2010 49th IEEE Conference on Decision and Control, CDC 2010. p. 2723-2728 6 p. 5717509. (Proceedings of the IEEE Conference on Decision and Control).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Gap Metric
Stability Margin
Robust Stability
Robustness (control systems)
Initialization
2017

Design of a flight envelope protection system for NASA's transport class model

Tekles, N., Chongvisal, J., Xargay, E., Choe, R., Talleur, D. A., Hovakimyan, N. & Belcastro, C. M., Jan 1 2017, In : Journal of Guidance, Control, and Dynamics. 40, 4, p. 863-877 15 p.

Research output: Contribution to journalArticle

flight envelopes
Flight envelopes
NASA
Envelope
aircraft
2012

A Lyapunov-based approach for Time-Coordinated 3D Path-Following of multiple quadrotors

Cichella, V., Kaminer, I., Xargay, E., Dobrokhodov, V., Hovakimyan, N., Aguiar, A. P. & Pascoal, A. M., Dec 1 2012, In : Proceedings of the IEEE Conference on Decision and Control. p. 1776-1781 6 p., 6425933.

Research output: Contribution to journalConference article

Time varying networks
Path Following
Unmanned aerial vehicles (UAV)
Lyapunov
Telecommunication networks
2013

Bode-like integral for stochastic switched systems in the presence of limited information

Li, D. & Hovakimyan, N., Jan 1 2013, In : Automatica. 49, 1, p. 1-8 8 p.

Research output: Contribution to journalArticle

Networked control systems
Information theory
Closed loop systems
Conservation
Feedback
2014

L1 adaptive output feedback augmentation of Model Reference Control

Lee, H., Cichella, V. & Hovakimyan, N., Jan 1 2014, 2014 American Control Conference, ACC 2014. Institute of Electrical and Electronics Engineers Inc., p. 697-702 6 p. 6859348. (Proceedings of the American Control Conference).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Feedback
Low pass filters
Control theory
Missiles
Closed loop systems
2016

Convex multi-objective filter optimization for output feedback L1 adaptive controller

Jafarnejadsani, H., Lee, H. & Hovakimyan, N., 2016, AIAA Guidance, Navigation, and Control Conference. American Institute of Aeronautics and Astronautics Inc, AIAA

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Feedback
Controllers
Closed loop systems
Adaptive systems
Low pass filters
2011

Fast estimation and ℒ1 adaptive control for bottomhole pressure in managed pressure drilling

Li, Z., Hovakimyan, N. & Kaasa, G. O., Nov 7 2011, 2011 IEEE International Symposium on Intelligent Control, ISIC 2011. p. 996-1001 6 p. 6045426. (IEEE International Symposium on Intelligent Control - Proceedings).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Drilling
Adaptive Control
Controller
Unmodeled Dynamics
Controllers
2012

Asynchronous task execution in networked control systems using decentralized event-triggering

Wang, X., Sun, Y. & Hovakimyan, N., Sep 1 2012, In : Systems and Control Letters. 61, 9, p. 936-944 9 p.

Research output: Contribution to journalArticle

Networked control systems
Communication
Data communication systems
Scheduling

L1 Adaptive controller for attitude control of multirotors

Mallikarjunan, S., Nesbitt, B., Kharisov, E., Xargay, E., Hovakimyan, N. & Cao, C., Dec 1 2012, AIAA Guidance, Navigation, and Control Conference 2012. (AIAA Guidance, Navigation, and Control Conference 2012).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Backstepping
Attitude control
Controllers
Robustness (control systems)
Kinematics
2015

Optimal filter design for a discrete-time formulation of L1-adaptive control

Jafarnejadsani, H. & Hovakimyan, N., Jan 1 2015, AIAA Infotech at Aerospace. American Institute of Aeronautics and Astronautics Inc., (AIAA Infotech at Aerospace).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Uncertain systems
Low pass filters
Linear programming

Collision avoidance through path replanning using Bézier curves

Mehdi, S. B., Choe, R., Cichella, V. & Hovakimyan, N., Jan 1 2015, AIAA Guidance, Navigation, and Control Conference 2015, MGNC 2015 - Held at the AIAA SciTech Forum 2015. American Institute of Aeronautics and Astronautics Inc., (AIAA Guidance, Navigation, and Control Conference 2015, MGNC 2015 - Held at the AIAA SciTech Forum 2015).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Collision avoidance
Trajectories
Planning
2016

L1 adaptive output regulator design with application to Managed Pressure Drilling

Mahdianfar, H., Hovakimyan, N., Pavlov, A. & Aamo, O. M., Jun 1 2016, In : Journal of Process Control. 42, p. 1-13 13 p.

Research output: Contribution to journalArticle

Drilling
Regulator
Disturbance
Adaptive Control
Filter Design
2015

Collision avoidance: A game theoretic approach

Snyder, S. & Hovakimyan, N., Jan 1 2015, AIAA Guidance, Navigation, and Control Conference. American Institute of Aeronautics and Astronautics Inc, AIAA, (AIAA Guidance, Navigation, and Control Conference, 2013).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Collision avoidance
Trajectories
Antennas

Cooperative Path Following of Multiple Multirotors over Time-Varying Networks

Cichella, V., Kaminer, I., Dobrokhodov, V., Xargay, E., Choe, R., Hovakimyan, N., Aguiar, A. P. & Pascoal, A. M., Jul 1 2015, In : IEEE Transactions on Automation Science and Engineering. 12, 3, p. 945-957 13 p., 7065327.

Research output: Contribution to journalArticle

Time varying networks
Unmanned aerial vehicles (UAV)
Telecommunication networks
Topology
2019

Multi-Spectral Visual Odometry without Explicit Stereo Matching

Dai, W., Zhang, Y., Sun, D., Hovakimyan, N. & Li, P., Sep 2019, Proceedings - 2019 International Conference on 3D Vision, 3DV 2019. Institute of Electrical and Electronics Engineers Inc., p. 443-452 10 p. 8885483. (Proceedings - 2019 International Conference on 3D Vision, 3DV 2019).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Stereo Matching
Cameras
Camera
Textures
Lighting
2015

Time-critical coordination of multiple UAVs with absolute temporal constraints

Puig-Navarro, J., Xargay, E., Choe, R., Hovakimyan, N. & Kaminer, I., Jan 1 2015, AIAA Guidance, Navigation, and Control Conference. American Institute of Aeronautics and Astronautics Inc, AIAA, (AIAA Guidance, Navigation, and Control Conference, 2013).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Unmanned aerial vehicles (UAV)
Landing
Telecommunication networks
Trajectories
Specifications
2019

Hidden markov model estimation-based q-learning for partially observable markov decision process

Yoon, H. J., Lee, D. & Hovakimyan, N., Jul 2019, 2019 American Control Conference, ACC 2019. Institute of Electrical and Electronics Engineers Inc., p. 2366-2371 6 p. 8814849. (Proceedings of the American Control Conference; vol. 2019-July).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Hidden Markov models
Learning algorithms
Maximum likelihood

Collision avoidance in cooperative missions: Bézier surfaces for circumnavigating uncertain speed profiles

Mehdi, S. B., Choe, R. & Hovakimyan, N., Jan 1 2019, In : Journal of Guidance, Control, and Dynamics. 42, 8, p. 1779-1796 18 p.

Research output: Contribution to journalArticle

collision avoidance
Collision Avoidance
Collision avoidance
Collision
collision
2012
Controller
Uncertainty
Controllers
Output
Performance Bounds
2010

Verifiable adaptive flight control: Unmanned combat aerial vehicle and aerial refueling

Wang, J., Hovakimyan, N. & Cao, C., Jan 1 2010, In : Journal of Guidance, Control, and Dynamics. 33, 1, p. 75-87 13 p.

Research output: Contribution to journalArticle

flight control
Flight Control
combat
refueling
Unmanned aerial vehicles (UAV)
2015

Collision avoidance based on line-of-sight angle

Cichella, V., Marinho, T., Stipanović, D., Hovakimyan, N., Kaminer, I. & Trujillo, A., Feb 8 2015, 54rd IEEE Conference on Decision and Control,CDC 2015. Institute of Electrical and Electronics Engineers Inc., p. 6779-6784 6 p. 7403287. (Proceedings of the IEEE Conference on Decision and Control; vol. 54rd IEEE Conference on Decision and Control,CDC 2015).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Collision Avoidance
Collision avoidance
Angle
Fixed wings
Units of measurement
2013

Marginal stability in ℒ1 -adaptive control of manipulators

Nguyen, K. D., Dankowicz, H. & Hovakimyan, N., Jan 1 2013, 9th International Conference on Multibody Systems, Nonlinear Dynamics, and Control. American Society of Mechanical Engineers, (Proceedings of the ASME Design Engineering Technical Conference; vol. 7 A).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Manipulator
Adaptive Control
Manipulators
Time Delay
Time delay
2016

A Visibility-Based Pursuit-Evasion Game with a Circular Obstacle

Bhattacharya, S., Başar, T. & Hovakimyan, N., Dec 1 2016, In : Journal of Optimization Theory and Applications. 171, 3, p. 1071-1082 12 p.

Research output: Contribution to journalArticle

Pursuit-evasion Games
Visibility
Game
Control Policy
Target tracking
2014

On the construction of barrier in a visibility based pursuit evasion game

Bhattacharya, S., Basar, M. T. & Hovakimyan, N., Jul 22 2014, 2014 European Control Conference, ECC 2014. Institute of Electrical and Electronics Engineers Inc., p. 1894-1901 8 p. 6862391. (2014 European Control Conference, ECC 2014).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Visibility

Flight envelope protection for NASA's transport class Model

Tekles, N., Xargay, E., Choe, R., Hovakimyan, N., Gregory, I. M. & Holzapfel, F., Feb 28 2014, AIAA Guidance, Navigation, and Control Conference. (AIAA Guidance, Navigation, and Control Conference).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Flight envelopes
NASA
Aircraft
Structural integrity
Power control
2010

Robustness of L1 adaptive controllers in the gap metric

Li, D., Hovakimyan, N. & Georgiou, T., Oct 15 2010, Proceedings of the 2010 American Control Conference, ACC 2010. p. 3247-3252 6 p. 5530708. (Proceedings of the 2010 American Control Conference, ACC 2010).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Robustness (control systems)
Controllers
Adaptive systems
Time delay
Robust stability

Time-critical coordination of multiple vehicles with uni-directional communication constraints

Dippold, A., Ma, L. & Hovakimyan, N., Oct 15 2010, Proceedings of the 2010 American Control Conference, ACC 2010. p. 1617-1622 6 p. 5531610. (Proceedings of the 2010 American Control Conference, ACC 2010).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Communication
Mobile robots
Controllers
2016

Aircraft actuator fault detection and isolation using piecewise constant fault estimation scheme

Lee, H., Snyder, S., Patterson, A. & Hovakimyan, N., Jan 1 2016, AIAA Guidance, Navigation, and Control Conference. American Institute of Aeronautics and Astronautics Inc, AIAA, (2016 AIAA Guidance, Navigation, and Control Conference).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Fault detection
Actuators
Aircraft
2010

On coordinated road search using time-coordinated path following of multiple UAVs

Dobrokhodov, V., Kaminer, I., Jones, K., Xargay, E., Li, Z., Hovakimyan, N., Aguiar, A. P. & Pascoal, A. M., Dec 1 2010, AIAA Guidance, Navigation, and Control Conference. AIAA 2010-7583. (AIAA Guidance, Navigation, and Control Conference).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Air
Optical sensors
2015

Time-critical coordination of multiple UAVs with absolute temporal constraints

Puig-Navarro, J., Xargay, E., Choe, R., Hovakimyan, N. & Kaminer, I., Jan 1 2015, AIAA Guidance, Navigation, and Control Conference 2015, MGNC 2015 - Held at the AIAA SciTech Forum 2015. American Institute of Aeronautics and Astronautics Inc., (AIAA Guidance, Navigation, and Control Conference 2015, MGNC 2015 - Held at the AIAA SciTech Forum 2015).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Unmanned aerial vehicles (UAV)
Landing
Telecommunication networks
Trajectories
Specifications
2012

Game-theoretic analysis of a visibility based pursuit-evasion game in the presence of a circular obstacle

Bhattacharya, S., Başar, T. & Hovakimyan, N., Dec 1 2012, Numerical Analysis and Applied Mathematics, ICNAAM 2012 - International Conference of Numerical Analysis and Applied Mathematics. 1 ed. p. 1222-1225 4 p. (AIP Conference Proceedings; vol. 1479, no. 1).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

pursuit-evasion games
games
visibility
trajectories

L 1 adaptive controller for uncertain nonlinear multi-input multi-output systems with input quantization

Sun, H., Hovakimyan, N. & Basar, M. T., Mar 1 2012, In : IEEE Transactions on Automatic Control. 57, 3, p. 565-578 14 p., 5892877.

Research output: Contribution to journalArticle

Controllers
Feedback
2011

1 adaptive controller for uncertain nonlinear multi-input multi-output systems with input quantization

Sun, H., Hovakimyan, N. & Basar, M. T., Jan 1 2011, Proceedings of the 18th IFAC World Congress. 1 PART 1 ed. IFAC Secretariat, p. 11308-11313 6 p. (IFAC Proceedings Volumes (IFAC-PapersOnline); vol. 44, no. 1 PART 1).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

MIMO systems
Controllers
Gain control
Nonlinear systems
Time delay
2010

Control of continuous-time systems with communication constraints: Linear quadratic stabilization and fundamental limitations

Li, D. & Hovakimyan, N., Oct 15 2010, Proceedings of the 2010 American Control Conference, ACC 2010. p. 343-348 6 p. 5530817. (Proceedings of the 2010 American Control Conference, ACC 2010).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Continuous time systems
Stochastic systems
Information theory
White noise
Linear matrix inequalities
2017

Design and evaluation of an L1 adaptive controller for NASA’s transport class model

Dodenhöft, J., Holzapfel, F., Choe, R., Ackerman, K. & Hovakimyan, N., Jan 1 2017, AIAA Guidance, Navigation, and Control Conference, 2017. American Institute of Aeronautics and Astronautics Inc, AIAA, (AIAA Guidance, Navigation, and Control Conference, 2017).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

NASA
Controllers
Aircraft
Flight envelopes
Flight control systems
2019
Sensitivity analysis
Feedback
Control systems
Poles and zeros
Gages
2013

Cooperative target tracking in balanced circular formation: Multiple UAVs tracking a ground vehicle

Ma, L. & Hovakimyan, N., Sep 11 2013, 2013 American Control Conference, ACC 2013. p. 5386-5391 6 p. 6580679. (Proceedings of the American Control Conference).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Ground vehicles
Unmanned aerial vehicles (UAV)
Target tracking
Topology
Bearings (structural)
2010

L1 adaptive control of flexible aircraft: Preliminary results

Avanzini, G., Capello, E., Piacenza, I. A., Quagliotti, F., Hovakimyan, N. & Xargay, E., Dec 1 2010, AIAA Atmospheric Flight Mechanics Conference 2010. (AIAA Atmospheric Flight Mechanics Conference 2010).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Aircraft
Controllers
Flight dynamics
Elevators
Fuselages
2011

Experimental validation of L1 adaptive control: The Rohrs counterexample in flight

Dobrokhodov, V., Kaminer, I., Kitsios, I., Xargay, E., Hovakimyan, N., Cao, C., Gregory, I. M. & Valavani, L., Sep 1 2011, In : Journal of Guidance, Control, and Dynamics. 34, 5, p. 1311-1328 18 p.

Research output: Contribution to journalArticle

flight control
adaptive control
Experimental Validation
Adaptive Control
Counterexample
2010

L1 adaptive controller for time-varying reference systems in the presence of unmodeled nonlinear dynamics

Kharisov, E., Hovakimyan, N., Wang, J. & Cao, C., Oct 15 2010, Proceedings of the 2010 American Control Conference, ACC 2010. p. 886-891 6 p. 5530476. (Proceedings of the 2010 American Control Conference, ACC 2010).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Controllers
Nonlinear systems
Control nonlinearities
Specifications
2015

Trajectory generation using spatial Pythagorean hodograph Bézier curves

Choe, R., Puig-Navarro, J., Cichella, V., Xargay, E. & Hovakimyan, N., Jan 1 2015, AIAA Guidance, Navigation, and Control Conference 2015, MGNC 2015 - Held at the AIAA SciTech Forum 2015. American Institute of Aeronautics and Astronautics Inc., (AIAA Guidance, Navigation, and Control Conference 2015, MGNC 2015 - Held at the AIAA SciTech Forum 2015).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Trajectories
Unmanned aerial vehicles (UAV)