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		Zhaojing WU,Xuejun XIE,Siying ZHANG.[en_title][J].Control Theory and Technology,2004,2(2):137~142.[Copy]

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ZhaojingWU,XuejunXIE,SiyingZHANG
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Received:August 12, 2003Revised:May 08, 2004

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Robust decentralized adaptive stabilization for a class of interconnected systems

Zhaojing WU, Xuejun XIE, Siying ZHANG

(School of Information Science and Engineering, Northeastern University, Shenyang Liaoning 110004, China;Institute of Automation, Qufu Normal University, Qufu Shandong 273165, China)

Abstract:

The robust decentralized adaptive output-feedback stabilization for a class of interconnected systems with static and dynamic interconnections by using the MT-filters and backstepping design method is studied. By introducing a new filtered transformation, the adaptive laws were derived for measurement. Under the assumption of the nonlinear growth conditions imposed on the nonlinear interconnections and by constructing the error system and using a new proof method, the global stability of the closed-loop system was effectively analyzed, and the exponential convergence of all the signals except for parameter estimates were guaranteed.

Key words: Decentralized adaptive stabilization Interconnected systems MT-filters Backstepping