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Flight Validation of a Metrics Driven L1 Adaptive Control

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Author
Dobrokhodov, Vladimir
Kitsios, Ioannis
Kaminer, Isaac
Jones, Kevin D.
Xargay, Enric
Hovakimyan, Naira
Cao, Chengyu
Lizarraga, Mariano I.
Gregory, Irene M.
Date
2008-08
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Abstract
The paper addresses initial steps involved in the development and flight implementation of new metrics driven L1 adaptive flight control system. The work concentrates on (i) definition of appropriate control driven metrics that account for the control surface failures; (ii) tailoring recently developed L1 adaptive controller to the design of adaptive flight control systems that explicitly address these metrics in the presence of control surface failures and dynamic changes under adverse flight conditions; (iii) development of a flight control system for implementation of the resulting algorithms onboard of small UAV; and (iv) conducting a comprehensive flight test program that demonstrates performance of the developed adaptive control algorithms in the presence of failures. As the initial milestone the paper concentrates on the adaptive flight system setup and initial efforts addressing the ability of a commercial off-the-shelf AP with and without adaptive augmentation to recover from control surface failures.
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This publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States.
URI
http://hdl.handle.net/10945/60080
https://ntrs.nasa.gov/search.jsp?R=20080033693
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    Flight Validation of a Metrics Driven L1 Adaptive Control in the Presence of General Unmodeled Dynamics 

    Xargay, Enric; Dobrokhodov, Vladimir; Kitsios, Ioannis; Kaminer, Isaac; Jones, Kevin D.; Hovakimyan, Naira; Cao, Chengyu; Lizarraga, Mariano I.; Gregory, Irene M. (IEEE, 2009-12);
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    Experimental Validation of L1 Adaptive Control: Rohrs' Counterexample in Flight 

    Xargay, Enric; Hovakimyan, Naira; Dobrokhodov, Vladimir; Kaminer, Issac; Kitsios, Ioannis; Cao, Chengyu; Gregory, Irene M.; Valavani, Lena (2010-01);
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    This paper presents flight-test results that examine the performance and robustness properties of an L1 control augmentation loop implemented onboard a small unmanned aerial vehicle. The framework used for in-flight ...
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