Resilient event-triggered control for cyber-physical systems under stochastic-sampling and denial-of-service attacks

This paper is concerned with the resilient event-triggered control (RETC) for cyber-physical systems (CPSs) under stochastic sampling and denial-of-service (DoS) attacks. Firstly, considering the effects of the stochastic sampling and the energy-constrained, aperiodic DoS attacks, an attack-resilient event-triggered scheme (ETS) under stochastic sampling is proposed to reduce the usage of system resources. Secondly, a class of delayed switched stochastic system model where time-delay is distributed in some intervals with probability is established for closed-loop system. Then, by using the Lyapunov stability theory, the switched systems theory and the stochastic analysis tool, the co-design algorithm which used to jointly design the event-trigger and state-feedback controller is developed. Finally, a numerical example on the secure control for a satellite control system is provided to demonstrate the effectiveness of the proposed control scheme.