Observer-based asynchronous event-triggered control for interval type-2 fuzzy systems with cyber-attacks

Abstract

This study investigates the observer-based asynchronous dynamic event-triggered control problem for networked interval type-2 fuzzy systems (IT-2 FSs) suffering from hybrid cyber-attacks, whereby the deception attacks (DAs) and the non-periodic denial-of-service (DoS) attacks are simultaneously considered. Contrasting with existing works, a new resilient dynamic event-triggering mechanism (DETM) is employed in the design process of the controller in the event of hybrid cyber-attacks. It is concluded that the resilient condition of DETM is adaptively varied based on current sampling, latest available packets, and a discrete dynamic function. Using a piecewise Lyapunov functional (PLF), new stochastically exponential stability conditions are developed to ascertain the link among asynchronous DETM, DAs, non-periodic DoS attacks and mismatched membership functions (MMFs). These results can further reduce the data transmissions and guarantee the exclusion of the Zeno behavior. The effectiveness of the concerned system under hybrid cyber-attacks is ultimately verified by a numerical simulation.