H∞ filter design for a class of networked control systems via T-S fuzzy model approach

This paper is concerned with H_∞ filter design for a class of networked control systems (NCSs) with multiple state-delays via Takagi-Sugeno (T-S) fuzzy model. The transfer delays and packet loss which are induced by the limited bandwidth of communication networks, are considered. The focus of this paper is on the analysis and design of a full-order H_∞ filter such that the filtering error dynamics is stochastically stable and a prescribed H_∞ attenuation level is guaranteed. Sufficient conditions are established for the existence of the desired filter in terms of linear matrix inequalities (LMIs). An example is given to illustrate the effectiveness and applicability of the proposed design method.