Output feedback adaptive dynamic surface control with input saturation

In this paper, an output-feedback adaptive dynamic surface control scheme for a class of nonlinear systems with actuator saturation nonlinearity was proposed, the proposed scheme didn´t require inner saturation information within actuator, solved the differential explosion of backstepping control with dynamic surface control (DSC) technique, and the update law is needed only at the first design step. By theory analysis, stability and tracking performance of proposed scheme was guaranteed. In the end an illustrative application example showed that good tracking capability could be obtained.