An observation algorithm for nonlinear systems with unknown inputs

被引：41

作者：

Barbot, Jean-Pierre ^{[2
,4
]}

Boutat, Driss ^{[3
]}

Floquet, Thierry ^{[1
,4
]}

机构：

[1] Ecole Cent Lille, LAGIS UMR CNRS 8146, F-59651 Villeneuve Dascq, France

[2] ENSEA, ECS, F-95014 Cergy, France

[3] LVR ENSIB, F-18020 Bourges, France

[4] INRIA Lille Nord Europe, Equipe Projet ALIEN, Lille, France

来源：

AUTOMATICA | 2009年 / 45卷 / 08期

关键词：

Nonlinear systems; Observability; Unknown inputs; LINEARIZABLE ERROR DYNAMICS; FAULT-DETECTION; OBSERVERS; DIFFERENTIATION;

D O I：

10.1016/j.automatica.2009.04.009

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

This paper deals with the design of unknown input observers for nonlinear systems. An algorithm which determines if the state and the unknown input of the system can be recovered in finite time is introduced. This algorithm leads to the transformation of the system into an extended block triangular observable form suitable for the design of finite time observers. The proposed method is useful to relax some restrictive conditions of the existing nonlinear unknown input observer design procedures. (C) 2009 Elsevier Ltd. All rights reserved.

引用

页码：1970 / 1974

页数：5

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