UUB Stability of Ncss Under Asynchronous Packet Loss and Random UDP Attacks: LMI Method‐Based Controller Design Technology

This article addresses the problem of uniformly ultimately bounded (UUB) stability in networked control systems (NCSs) under packet loss and user datagram protocol (UDP) attacks. Since the system is also subject to cyber‐attacks when packet loss occurs, we consider the case where packet loss and UDP attacks are asynchronous. First, two sets of Bernoulli models are used to simulate the asynchronous scenarios of packet loss and UDP attacks, and they are incorporated into the controller design to enhance the system's resilience to communication constraints. Second, an algorithm is introduced to extract the moment and interval of packet loss to more accurately calculate the probability of packet loss, thereby reducing the impact of packet loss on the system. Then, a dual‐threshold dynamic‐memory‐event‐triggered scheme (DMETS) is proposed to reduce the number of data transmissions to improve network resource utilization while mitigating the impact of packet loss and UDP attacks. In addition, a state feedback controller is designed to ensure UUB stability by utilizing Lyapunov stability theory and linear matrix inequality (LMI) techniques. Finally, the effectiveness and advantages of the proposed controller are verified by simulation of the flight control system.