Abstract
Focusing on the networked control systems (NCSs) with data packet dropout, the problems of observer-based fault detection are addressed. The packet dropouts of the NCSs are modeled as a stochastic variable satisfying Bernoulli distribution and the fixed short-delays are considered. A new delta operator discrete time model is constructed to depict the behavior of the NCSs. Based on the established model, an observer-based fault detection (FD) filter is given. The stability analysis and H» performance of the delta operator filtering error system are developed with Lyapunov-Krasovskii functional and linear matrix inequalities (LMIs) in delta domain. A numerical example is provided to illustrate the effectiveness of the proposed method.
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