Secure Observer‐Based Guaranteed Cost Control for Networked Control Systems With Mixed Anomalies

ABSTRACT The problem of secure observed‐based guaranteed cost control for networked control systems with mixed anomalies is studied in this article, and the anomalies are considered to exist in both the actuators and the communication channels. The mixed anomalies have brought new challenges to the secure guaranteed cost control because of the coupling property and diversity modes of anomalies. Thus, a secure generalized extended state observer is presented for the estimation of the system state and actuator anomalies. Then the systems with communication‐channel‐anomalies is modeled as switched systems and the secure observer‐based guaranteed cost control strategy is designed. Finally, simulation examples are given to show the effectiveness of the secure observer‐based guaranteed cost control method.