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控制理论与应用 2008
Robust H-two state estimation for stochastic uncertain discrete-time system with missing measurements
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Abstract:
In the packet-based transmission of data over a network with limited bandwidth or temporary sensor failure, measurement data may be missing.The H-two filtering problem for an uncertain discrete-time system with missing mea- surement data is considered.The uncertain parameters in the system matrices are assumed to belong to a given convex bounded polyhedral domain.The occurrence of missing measurement data is random and is assumed to be a Bernoulli distributed sequence with known probability.Sufficient conditions are derived in terms of linear matrix inequalities (LMIs) for the existence of a full-and-reduced-order filter ensuring a prescribed H-two performance for all admissible uncertainties and the possible data missing.Numerical example is provided to demonstrate the feasibility of the proposed method.