IMPROVED ROBUST H-INFINITY ESTIMATION FOR UNCERTAIN CONTINUOUS-TIME SYSTEMS

被引：0
|
作者：
Aiguo WU Huafeng DONG Guangren DUAN Aiguo WU Center for Control Theory and Guidance Technology
Information and Control Research Center
机构：
来源：
Journal of Systems Science & Complexity | 2007年 / 03期
基金：
中国国家自然科学基金;
关键词：
Conservativeness; estimation; parameter-dependence; polytopic uncertainty;
D O I：
暂无
中图分类号：
O213 [应用统计数学];
学科分类号：
摘要：
The design of full-order robust estimators is investigated for continuous-time polytopicuncertain systems.The main purpose is to obtain a stable linear estimator such that the estimationerror system remains robustly stable with a prescribed Hattenuation level.Firstly,a simple alterna-tive proof is given for an improved LMI representation of Hperformance proposed recently.Basedon the performance criterion which keeps the Lyapunov matrix out of the product of the system dy-namic matrices,a sufficient condition for the existence of the robust estimator is provided in terms oflinear matrix inequalities.It is shown that the proposed design strategy allows the use of parameter-dependent Lyapunov functions and hence it is less conservative than the earlier results.A numericalexample is employed to illustrate the feasibility and advantage of the proposed design.
引用
收藏
页码：362 / 369
页数：8
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