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Design of robust output feedback controllers with variance and disc closed-loop pole constraints

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3 Author(s)
Li Yu ; Dept. of Autom., Zhejiang Univ. of Technol., Hangzhou, China ; Qing-Long Han ; Xiong-Xiong He

This paper is concerned with the problem of robust output feedback controller design for a class of linear systems with uncertain parameters. The objective is to design a controller such that the closed-loop poles are assigned within a specified disc and the steady regulated output covariance is guaranteed to be less than a given upper bound. Using a linear matrix inequality (LMI) approach, the existence conditions of such controllers are derived, and a parametrized characterization of a set of desired controllers (if they exist) is presented in terms of the feasible solutions to a set of LMIs. A procedure is given to select a suitable output feedback controller that minimizes the desired control effort.

Published in:

Decision and Control, 2003. Proceedings. 42nd IEEE Conference on  (Volume:1 )

Date of Conference:

9-12 Dec. 2003

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