Performance based attack detection and security analysis for cyber‐physical systems
Zhengen Zhao, Yunsong Xu
Abstract
Summary This paper studies attack detection and security analysis for cyber‐physical systems from the viewpoint of control performance. The performance residual generated by Bellman equation has been presented to construct the attack detector. Then, the control‐performance‐based attack detection schemes are designed for state measurable system and state unmeasurable system, respectively. Furthermore, the data‐driven realizations of control‐performance‐based attack detection are presented via kernel identification. Moreover, the security analysis of the proposed control‐performance‐based attack detection schemes is studied, in which the undetectable state and output attacks are designed. Finally, simulations on the model of a flight vehicle demonstrate the effectiveness of the proposed methods.