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Adaptive output feedback regulation for a class of uncertain nonlinear systems
Author(s) -
Yu Weiyong,
Liu Shutang,
Zhang Fangfang
Publication year - 2014
Publication title -
international journal of robust and nonlinear control
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.361
H-Index - 106
eISSN - 1099-1239
pISSN - 1049-8923
DOI - 10.1002/rnc.3192
Subject(s) - control theory (sociology) , nonlinear system , constructive , observer (physics) , controller (irrigation) , output feedback , scheme (mathematics) , class (philosophy) , computer science , triangular matrix , mathematics , mathematical optimization , control (management) , mathematical analysis , physics , process (computing) , quantum mechanics , artificial intelligence , pure mathematics , operating system , agronomy , invertible matrix , biology
Summary In this paper, the problem of global state regulation by output feedback is investigated for a class of uncertain nonlinear systems satisfying some relaxed upper‐triangular‐type condition. Using a linear dynamic gain observer with two dynamic gains and introducing two appropriate change of coordinates, we give a constructive design procedure for the linear‐like output feedback stabilizing controller. It is proved that the proposed controller globally regulates all the states of the uncertain system and maintains global boundedness of the closed‐loop system. An example is provided to demonstrate the effectiveness of the proposed design scheme. Copyright © 2014 John Wiley & Sons, Ltd.