Robust adaptive output-feedback control for nonlinear systems with output unmodeled dynamics

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Wu, Zhaojing, Xie, Xuejun and Shi, Peng (2008) Robust adaptive output-feedback control for nonlinear systems with output unmodeled dynamics. International Journal of Robust and Nonlinear Control, 18 (11). pp. 1162-1187. ISSN 1049-8923

Abstract

In this paper, for a class of uncertain nonlinear systems in the presence of inverse dynamics, output unmodeled dynamics and nonlinear uncertainties, a robust adaptive output-feedback controller design is proposed by combining small-gain theorem, changing supply function techniques with backstepping methods. It is shown that all the signals of the closed-loop system are uniformly bounded in biased case, and the output can be regulated to a small neighborhood of the origin in unbiased case. Furthermore, under some additional assumptions, an asymptotical result is obtained.

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Item type	Article
URI	https://vuir.vu.edu.au/id/eprint/4060
DOI	10.1002/rnc.1273
Official URL	http://onlinelibrary.wiley.com/doi/10.1002/rnc.127...
Subjects	Historical > Faculty/School/Research Centre/Department > Institute for Logistics and Supply Chain Management (ILSCM) Historical > FOR Classification > 0199 Other Mathematical Sciences Information Systems
Keywords	ResPubID18738, nonlinear systems, adaptive backstepping control, small gain, output unmodeled dynamics, inverse dynamics
Citations in Scopus	50 - View on Scopus
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