quotation:		[Copy]
		Bin MENG;Jifeng ZHANG;Siying ZHANG.[en_title][J].Control Theory and Technology,2007,5(2):127~132.[Copy]

This Paper:Browse 689 Download 196	码上扫一扫！

BinMENG;JifengZHANG;SiyingZHANG
0 Fontlarge +\|Default\|Small
()

摘要:

关键词:

DOI：

Received:April 16, 2006Revised:September 16, 2006

基金项目:

Observability conditions of switchedlinear singular systems

Bin MENG;Jifeng ZHANG;Siying ZHANG

(National Laboratory of Space Intelligent Control, Beijing Institute of Control Engineering, Chinese Academy of Space Technology, Beijing 100080, China; Key Laboratory of Systems Control, Academy of Mathematics and Systems Science, Chinese Academy of Sciences, Beijing 100080, China)

Abstract:

The observability problem of switched linear singular(SLS) systems is studied in this paper. Based on the observability definition, the unobservable subspaces of given switching laws are investigated under the condition that all subsystems are regular. A necessary condition and a sufficient condition for observability of SLS systems are given. It is shown that the observability and controllability are dual for some special SLS systems with circulatory switching laws. The method developed here is applicable to the observability analysis of normal switched linear systems.

Key words: Switched system Singular system Observability Unobservable subspace