Improved scalar parameters approach to design robust H∞ filter for uncertain discrete-time linear systems

被引：21
作者：
Han, Kezhen [1 ]
Feng, Jian [1 ]
机构：
[1] Northeastern Univ, Sch Informat Sci & Engn, Shenyang 110819, Peoples R China
来源：
SIGNAL PROCESSING | 2015年 / 113卷
基金：
中国国家自然科学基金;
关键词：
Robust H-infinity filtering; Scalar parameters approach; Diagonal matrix multipliers; Eigenvalues theory; STABILITY; H-2;
D O I：
10.1016/j.sigpro.2015.01.018
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
This note investigates the less conservative robust H-infinity filtering for uncertain discrete-time systems from the point of view of structured scalar parameters approach. To increase the design degree of freedom, a new structure characterized by the diagonal matrix multipliers composed of independent scalar parameters is proposed on the basis of eigenvalues theory when defining auxiliary matrix variables. The merit of such idea can be guaranteed by optimally searching those multipliers of the slack matrix variables involved in the products with filter parameters in the design conditions. Then, this formulation is applied to improve the bounded and unbounded scalar parameters based results. Finally, three examples are given to illustrate the effectiveness and expansibility of the developed methods. (C) 2015 Elsevier B.V. All rights reserved.
引用
收藏
页码：113 / 123
页数：11
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