Event-triggered non-fragile guaranteed cost output feedback control for switched systems under DoS attacks

Abstract This paper studies the non-fragile guaranteed cost event-triggered control for the discrete-time networked switched system under denial-of-service (DoS) attacks. In order to solve the problem of limited communication resources in networked switched systems, the event-triggered mechanism (ETM) is introduced. Due to the presence of ETM, the mode of subsystem and controller may be different. In addition, the adverse effects of DoS attacks and uncertain parameters on system performance are also considered. Based on the above analysis, the average dwell time switching law is given by using a suitable Lyapunov function to ensure the global uniform asymptotic stability of asynchronous switched systems. Then, the design strategy of non-fragile guaranteed cost event-triggered controller and the upper bound of quadratic guaranteed cost function are given. Finally, the effectiveness of the proposed method is demonstrated by two comparative simulation results.