Secure Adaptive-Event-Triggered Filter Design With Input Constraint and Hybrid Cyber Attack

The problem of secure adaptive-event-triggered filter design with input constraint and hybrid cyber attack is investigated in this article. First, a new model of hybrid cyber attack, which considers a deception attack, a replay attack, and a denial-of-service (DoS) attack, is established for filter design. Second, an adaptive event-triggered scheme is applied to the filter design to save the limited communication resource. In addition, a novel adaptive-event-triggered filtering error model is established with the consideration of hybrid cyber attack and input constraint. Moreover, based on the Lyapunov stability theory and linear matrix inequality technique, sufficient conditions are obtained to guarantee the augmented system stability, and the parameters of the designed filter are presented with explicit forms. Finally, the proposed method is validated by simulation examples.

Automated summary

This article investigates the problem of secure adaptive-event-triggered filter design with input constraint and hybrid cyber attack. A new model of hybrid cyber attack is established for filter design, and an adaptive event-triggered scheme is applied to save communication resource. Moreover, a novel adaptive-event-triggered filtering error model is established and sufficient conditions for system stability are obtained through Lyapunov stability theory and linear matrix inequality technique.