Robust H-infinity estimation for continuous-time polytopic uncertain systems
Aiguo WU
Guangren DUAN
摘要：The design of full-order robust H-infinity estimators is investigated for continuous-time polytopic uncertain systems. The main purpose is to obtain a stable and proper linear estimator such that the estimation error system remains robustly stable with a prescribed H-infinity attenuation level. Based on a recently proposed H-infinity performance criterion which exhibits a kind of decoupling between the Lyapunov matrix and the system dynamic matrices, a sufficient condition for the existence of the robust estimator is provided in terms of linear 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 earlier results. A numerical example is employed to illustrate the feasibility and advantage of the proposed design.
机标关键词：linear matrix inequalitiessufficient conditionLyapunov functionsuncertain systemsrobust estimatorlinear estimatorestimation errordesign strategy
分类号：TP3(计算技术、计算机技术)
资助基金：the Chinese National Natural Science Foundation(60374024)
论文发表日期：2005-01-01
在线出版日期：2025-08-15（本平台首次上网日期，不代表文献的发表时间）
页数：6( 393-398 )
英文信息