Decentralized Switching-Type Adaptive Event-Triggered-Based Non-Recursive Control for Interconnected Cyber-Physical Systems Against Multiple Cyber Attacks

This study addresses a decentralized switching-type adaptive event-triggered-based non-recursive security controller design for interconnected cyber-physical systems under multiple cyber attacks. First, an acknowledgment character technique is introduced in the measurement channel to detect whether DoS attacks occur. In the control channel, system signals are subject to hybrid cyber attacks, which consist of DoS and deception attacks obeying independent Bernoulli distributions. Second, a switching-type adaptive event-triggered mechanism is constructed in the sensor-to-controller channel to improve bandwidth resource utilization and compensate for the impact of DoS attacks. A decentralized linear observer is built to estimate the unmeasured states, and an output feedback controller is developed using a non-recursive method, which ensures that all signals in the closed-loop system are uniformly ultimately bounded. Finally, an inverted pendulum system is provided to illustrate the effectiveness of the proposed scheme.