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		Bin ZHOU,Guangren DUAN.[en_title][J].Control Theory and Technology,2006,4(2):147~154.[Copy]

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BinZHOU,GuangrenDUAN
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Received:September 25, 2004Revised:March 06, 2006

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An explicit solution to polynomial matrix right coprime factorization with application in eigenstructure assignment

Bin ZHOU, Guangren DUAN

(Center for Control Theory and Guidance Technology, Harbin Institute of Technology, Harbin Heilongjiang 150001, China)

Abstract:

In this paper, an explicit solution to polynomial matrix right coprime factorization of input-state transfer function is obtained in terms of the Krylov matrix and the Pseudo-controllability indices of the pair of coefficient matrices. The proposed approach only needs to solve a series of linear equations. Applications of this solution to a type of generalized Sylvester matrix equations and the problem of parametric eigenstructure assignment by state feedback are investigated. These new solutions are simple, they possess better structural properties and are very convenient to use. An example shows the effect of the proposed results.

Key words: Pseudo-Controllability Indices Krylov matrix Controllability Polynomial matrix right coprime factorization Sylvester matrix equation Eigenstructure assignment