Sampled-data output feedback control for a class of nonlinear systems with mismatched disturbances

摘要

This paper investigates the global output feedback sampled-data control of a class of nonlinear systems with mismatched disturbances. A linear state observer is constructed to estimate the states. A disturbance observer is designed to estimate the mismatched disturbances. The sampled-data controller is proposed with the estimated states and the estimated disturbances. The output feedback controller can ensure that the nonlinear system is globally stable. Finally, an example is given to show the effectiveness of the proposed control scheme.