标题：On H∞ fault estimator design for linear discrete time-varying systems under unreliable communication link
作者：Li, Yueyang ;Liu, Shuai ;Wang, Zhonghua ;Yan, Xuehua
作者机构：[Li, Yueyang ;Wang, Zhonghua ;Yan, Xuehua ] School of Electrical Engineering, University of Jinan, Jinan; 250022, China;[Liu, Shuai ] School of Contro 更多
来源：Mathematical Problems in Engineering
摘要：This paper investigates the H∞ fixed-lag fault estimator design for linear discrete time-varying (LDTV) systems with intermittent measurements, which is described by a Bernoulli distributed random variable. Through constructing a novel partially equivalent dynamic system, the fault estimator design is converted into a deterministic quadratic minimization problem. By applying the innovation reorganization technique and the projection formula in Krein space, a necessary and sufficient condition is obtained for the existence of the estimator. The parameter matrices of the estimator are derived by recursively solving two standard Riccati equations. An illustrative example is provided to show the effectiveness and applicability of the proposed algorithm.
© 2014 Yueyang Li et al.