Robust sampled-data control for fuzzy uncertain systems

Sampled-data control which are capable of stabilizing the general nonlinear systems with the intersample behavior taken into account are of great current interest. In this paper, the Takagi-Sugeno fuzzy models is considered for representing the nonlinear plants. For the Takagi-Sugeno fuzzy model and the Takagi-Sugeno uncertain fuzzy model, the fuzzy sampled-data control and the robust sampled-data control were considered in the paper. The robust sampled-data control for the Takagi-Sugeno uncertain fuzzy model with the constraints on the states was also developed. The results were described as the matrix inequalities, which could be solved by LMITool. Finally, a numerical example based on the missile autopilot model was considered, the result shown the effectiveness of the proposed procedures.