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Robust observer for a class of linear system with matched uncertainty based on LMI
CHEN Fengxiang 1 * #,LIU Lin 2,SU Zhou 2,ZHANG Tong 2
1.School of Automotive Studies, Tongji University, ShangHai 201804
2.School of Automotive Studies, Tongji University, Shanghai, 201804
*Correspondence author
#Submitted by
Subject:
Funding: SRFDP(No.20090072120025), NSCF(No.61104077)
Opened online:24 July 2012
Accepted by: none
Citation: CHEN Fengxiang,LIU Lin,SU Zhou.Robust observer for a class of linear system with matched uncertainty based on LMI[OL]. [24 July 2012] http://en.paper.edu.cn/en_releasepaper/content/4484858
 
 
In this paper, a novel framework of robust observer for linear system with parametric uncertain state matrix matched with output matrix is introduced. The scheme is derived by including an extra term to the feedback gain, and the term is obtained by the analysis of the Lyapunov stability theory and LMI (Linear Matrix Inequality). The proposed observer is less conservative and thus lead to a low gain matrix based on the novel framework. Finally, the effectiveness of the proposed method is validated by the numerical simulations on Matlab environment.
Keywords:Control engineering; Robust observer; linear system; matched uncertainties; linear matrix inequality (LMI)
 
 
 

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