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Event-triggered fuzzy filtering for nonlinear networked systems with dynamic quantization and stochastic cyber
1School of Electronic and Control Engineering, North China Institute of Aerospace Engineering, Langfang 065000, China; Hebei Engineering Research Center for Assembly and Inspection Robot, North China Institute of Aerospace Engineering, Langfang 065000, China.
Abstract:
In this article, the H∞ filtering issue is considered for discrete-time nonlinear networked systems subject to event-triggered communication scheme, dynamic quantization, and stochastic cyber attacks. The considered nonlinear networked system is described by the Takagi-Sugeno (T-S) fuzzy model. The event-triggered policy and the dynamic quantizer will be considered to realize the effective use of the restricted network bandwidth resources. Moreover, a stochastic variable that satisfies the Bernoulli random binary distribution is employed to characterize the effects of stochastic cyber attacks. This paper focus on the design of full- and reduced-order event-triggered H∞ filters and the dynamic parameter of the quantizer such that the filtering error system is stochastically stable and satisfies a predefined H∞ filtering performance. The sufficient design conditions for the event-triggered H∞ filters and the dynamic parameter of the quantizer are proposed based on linear matrix inequalities (LMIs). Finally, an example based on practical application will be used to verify the effectiveness of the presented design methods.
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