L∞ Filter Design for Continuous-Time T-S fuzzy Systems with Quantization

This paper considers the L-infinity filtering problem for a class of continuous-time nonlinear systems. Takagi-Sugeno fuzzy model is introduced to represent the nonlinear plant. Both the measurement output signals and the performance output signals of the plant are assumed to be quantized. The motive of this paper is to design L-infinity filter for continuous-time T-S fuzzy systems such that the filtering error system is asymptotically stable and the prescribed L(infinity )disturbance attenuation level is guaranteed with respect to the effect of quantization. Sufficient conditions for the existence of such a L-infinity filter are formulated in terms of standard linear matrix inequalities(LMIs). Finally, simulation example is given to illustrate the effectiveness of the proposed design method.