Design of sliding mode output feedback controllers via dynamic sliding surface

This paper investigates the output feedback sliding mode control (SMC) strategies for continuous-time linear systems with matched external disturbance, the output-based dynamic sliding surface is designed analytically and the output feedback sliding mode controller is organized by using an auxiliary system approach, and the initial condition of the auxiliary system is independent of the unmeasurable state. It is worth mentioning that, the sliding surface parameters can be designed explicitly, and with the proposed control laws, the reachability condition can be guaranteed. Simulation results demonstrate the effectiveness and advantages of the proposed design techniques.