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		Yanxin ZHANG, Zhongsheng HOU, Xiaofan WANG.[en_title][J].Control Theory and Technology,2006,4(3):272~276.[Copy]

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YanxinZHANG,ZhongshengHOU,XiaofanWANG
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Received:April 22, 2004Revised:April 11, 2006

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Decentralized state observer scheme for uncertain time-delay T-S fuzzy interconnected systems

Yanxin ZHANG, Zhongsheng HOU, Xiaofan WANG

(Institute of Automation, Beijing Jiao Tong University, Beijing 100044, China; Institute of Automation, Shanghai Jiao Tong University, Shanghai 200030, China)

Abstract:

This paper focuses on a class of T-S fuzzy interconnected systems with time delays and time-varying parameter uncertainties. Observer-based output feedback decentralized controller is designed such that the closed-loop interconnected system is asymptotically stable in the Lyapunov sense in probability for all admissible uncertainties and time delays. Sufficient conditions for robustly asymptotically stability of the systems are given in terms of a set of linear matrix inequalities(LMIs).

Key words: T-S fuzzy interconnected systems State delay Input delay Robust decentralized control LMI method