LAUSR

This paper examines the dynamic output feedback H2/H∞$$ {H}_2/{H}_{\infty } $$ control of interval type‐2 (IT‐2) fuzzy systems suffering from stealthy denial of service (DoS) attacks under the adaptive event‐triggered stochastic communication protocol (AETSCP). Considering the advantages of the AET mechanism and the SCP, a new AETSCP is proposed, whose trigger parameters can be dynamically adjusted based on the changing trend of the system state and the stealthy DoS attack probability. The signal‐to‐interference plus noise ratio (SINR)‐based DoS attacker continuously senses the channel and utilizes the trigger characteristics of the AET mechanism to cleverly launch the attack to ensure its stealthiness. A dynamic quantizer is employed to quantize the measured output, and a time‐varying fault matrix is adopted to represent actuator faults. By applying the mode‐dependent Lyapunov function, the sufficient condition to ensure the stability of the considered networked control system (NCS) is derived, and the dynamic output feedback controller satisfying the H2/H∞$$ {H}_2/{H}_{\infty } $$ performance is designed. Lastly, a simulation example is used to verify the effectiveness of the proposed algorithm.