Time-varying increasing-gain observers for nonlinear systems

被引：36

作者：

Alessandri, Angelo ^{[1
]}

Rossi, Anna ^{[1
]}

机构：

[1] Univ Genoa, Dept Mech Engn, I-16129 Genoa, Italy

来源：

AUTOMATICA | 2013年 / 49卷 / 09期

关键词：

Nonlinear observer; High-gain observer; Lyapunov stability; LIPSCHITZ; DESIGN;

D O I：

10.1016/j.automatica.2013.05.026

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

A full-order state observer for a class of nonlinear continuous-time systems is presented as generalization of the high-gain observer for having a time-varying gain that is let to be small in the first time instants, increases over time up to its maximum, and then is kept constant. The global stability of the resulting estimation error is proved by means of a Lyapunov functional via a change of coordinate. The design of such an observer is obtained by solving a nonlinear programming problem and using series expansions to set the time-varying gain. (C) 2013 Elsevier Ltd. All rights reserved.

引用

页码：2845 / 2852

页数：8

共 17 条

[1] A generalized framework for robust nonlinear H∞ filtering of Lipschitz descriptor systems with parametric and nonlinear uncertainties [J].