Security correction control of stochastic cyber–physical systems subject to false data injection attacks with heterogeneous effects

• Published in: ISA transactions Vol. 123; pp. 1 - 13
• Main Authors: Dong, Lewei, Xu, Huiling, Wei, Xinjiang, Hu, Xin
• Format: Journal Article
• Language: English
• Published: United States Elsevier Ltd 01.04.2022
• Subjects: Attack effects modeling; False data injection attacks; Interconnected adaptive observer; Security correction control; Stochastic cyber–physical systems; Stochastic cyber–physical systems; Interconnected adaptive observer; Attack effects modeling; False data injection attacks; Security correction control
• ISSN: 0019-0578; 1879-2022; 1879-2022
• DOI: 10.1016/j.isatra.2021.05.015

In this paper, the interconnected observer intervention-based security correction control idea is proposed for stochastic cyber–physical systems (CPSs) subjected to false data injection attacks (FDIAs). The FDIAs are injected into the controller-to-actuator channel by the adversary via wireless transmission. In particular, the FDIAs with heterogeneous effects are constructed, which consist of periodic attacks with unknown parameters and bias injection attacks with asymptotic convergence property. A novel interconnected adaptive observer structure is designed to online estimate the heterogeneous attack effects. The security correction control scheme with resilience is presented by integrating interconnected adaptive observer and robust technology. It is demonstrated that the impaired state signals can be corrected and desired security performance can be guaranteed for stochastic CPSs under FDIAs with heterogeneous effects. Finally, two simulation verifications, including a F-16 longitudinal dynamics system controlled by network, are established to verify the validity and feasibility for the presented strategy. •The novel FDIA model with heterogeneous effects is established.•The interconnected adaptive observer is designed to online estimate the FDIA effects.•The independent observation gain ensure validity of certainty equivalence principle.•The presented security correction control scheme enhance security of stochastic CPSs.