Adaptive Fuzzy Secured Control for Multiagent Systems Under DoS Attacks and Intermittent Actuator Failures
Yongming Li, Ge Lu, Kewen Li
Abstract
In this paper, the security-based adaptive fuzzy control issue is studied for strict feedback multiagent systems (MASs) with actuator failures and DoS attacks. Fuzzy logic systems (FLSs) are applied to approximate unknown nonlinear functions. In order to deal with the discontinuous signals caused by DoS attacks, a distributed filter is constructed. Based on the proposed filter and the backstepping control technique, a security-based robust adaptive fuzzy fault-tolerant controller is designed to compensate for the effect caused by intermittent actuator faults. The proposed control method can ensure the tracking error converges to a small neighborhood of the origin and all signals in the closed-loop system are bounded. Finally, simulation results are given to demonstrate the effectiveness of the proposed control method.