期刊
AUTOMATICA
卷 44, 期 12, 页码 3152-3156出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.automatica.2008.05.015
关键词
Finite-time stable; High gain observers; Homogeneous systems; Nonlinear system; Observability
It is well known that high gain observers exist for single output nonlinear systems that are uniformly observable and globally Lipschitzian. Under the same conditions, we show that these systems admit semi-global and finite-time converging observers. This is achieved with a derivation of a new sufficient condition for local finite-time stability, in conjunction with applications of geometric homogeneity and Lyapunov theories. (C) 2008 Elsevier Ltd. All rights reserved.
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