Decentralized H_∞ Filtering for Interconnected Time-Delay Systems
Journal of Northeastern University(Natural Science)(2011)
摘要
For a class of interconnected time-delay systems,a linear filter was designed for each subsystem by using the output of the subsystem as the input of the designed filter.Based on Lyapunov-Krasovskii functional method,a delay-independent sufficient condition of the existence of the linear filter was obtained.For the convenience of the filter design,a decoupling algorithm was applied to transform the obtained sufficient condition into a linear matrix inequality(LMI) which can be easily solved.Furthermore,the filter design problem was changed to a convex optimization solving problem constrained by LMI to achieve good H∞ performances.A numerical example demonstrates the feasibility of the proposed filter design method.
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关键词
Delay-independent,H ∞ filtering,Large-scale systems,Linear matrix inequality,Time delay
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