L2-L∞ filtering for stochastic Markovian jump delay systems with nonlinear perturbations.
Signal Processing(2015)
摘要
This paper is concerned with the L 2 - L ∞ filtering problem for Itô stochastic delayed Markovian jump systems subject to nonlinear parameter and sensor perturbations. The nonlinear perturbations in both state and measurement equations considered in the existing literature are generalizeed by including the cross information among the current state, the delayed state and the nonlinear perturbations. Based on a stochastic integral inequality and the convex analysis property, an L 2 - L ∞ performance condition is presented to guarantee the mean-square exponential stability of the resulting filtering error system with prescribed L 2 - L ∞ disturbance attenuation level. By utilizing the information of the time-varying delay, the delay is not estimated by the worst-case enlargement such that the conservatism is reduced. Then with the obtained performance analysis result, a stochastic L 2 - L ∞ filter for the system under consideration is designed. Illustrative examples are given to demonstrate the usefulness of the developed approach. HighlightsThe nonlinearities in state and measurement equations in this paper are more general than those in the literature.A stochastic integral inequality is presented to establish the main results on L 2 - L ∞ filtering for stochastic systems..The information of time-varying delay is reserved to reduce the conservatism.
更多查看译文
关键词
L-2-L-infinity filtering,Stochastic systems,Markovian jump,Sector-bounded nonlinearities,Stochastic integral inequality
AI 理解论文
溯源树
样例
生成溯源树,研究论文发展脉络