Performance based attack detection and security analysis for cyber-physical systems

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.