Output Feedback Sliding Mode Control for Sampled-Data Systems

We address the output feedback sliding mode control problem for a sampled data linear system with external disturbances of the matching type. By taking into account the disturbance compensation, a deadbeat high gain output feedback control strategy with additional dynamics is able to attenuate the disturbances. In the framework of singular perturbation analysis, it is shown that the closed loop system exhibits good robustness against exogenous disturbances.