Journal article
mathcal 1 Adaptive Output Feedback for Nonsquare Systems With Arbitrary Relative Degree
IEEE transactions on automatic control, Vol.66(2), pp.895-901
02/2021
DOI: 10.1109/TAC.2020.2989279
Abstract
This article considers adaptive output-feedback control problem for nonsquare multi-input-multi-output systems (MIMO) with arbitrary relative degree. The proposed controller, based on the L 1 adaptive control architecture, is designed using the right interactor matrix and a suitably defined projection matrix. A state-output predictor, a low-pass filter, and adaptive laws are introduced that achieve output tracking of a desired reference signal. It is shown that the proposed control strategy guarantees closed-loop stability with arbitrarily small steady-state errors. The transient performance in the presence of nonzero initialization errors is quantified in terms of decreasing functions. Rigorous mathematical analysis and illustrative examples are provided to validate the theoretical claims.
Details
- Title: Subtitle
- mathcal 1 Adaptive Output Feedback for Nonsquare Systems With Arbitrary Relative Degree
- Creators
- Hanmin Lee - Agency of Defense Development (ADD), Daejeon, KoreaVenanzio Cichella - University of IowaNaira Hovakimyan - University of Illinois at Urbana–Champaign
- Resource Type
- Journal article
- Publication Details
- IEEE transactions on automatic control, Vol.66(2), pp.895-901
- Publisher
- IEEE
- DOI
- 10.1109/TAC.2020.2989279
- ISSN
- 0018-9286
- eISSN
- 1558-2523
- Grant note
- FA9550-15-1-0518 / Air Force Office of Scientific Research (10.13039/100000181) NASA NNX12AM53A / National Aeronautics and Space Administration; NASA (10.13039/100000104) N00014-19-1-2106 / Office of Naval Research (10.13039/100000006)
- Language
- English
- Date published
- 02/2021
- Academic Unit
- Mechanical Engineering
- Record Identifier
- 9984196624902771
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