Secure control strategy by state reconstruction for ICPS under FDI attacks
REN Yue-qi
SUN Zi-wen
Abstract：To enhance the security of industrial cyber-physical systems(ICPS)simultaneously subject to false data injection(FDI)attacks on both the actuator channel and sensor channel,this paper proposes a secure control strategy based on reconstructing FDI attack signals and ICSP states.Firstly,an augmented state comprising the system state and sensor attack signals is constructed to establish the augmented system.Secondly,based on the established augmented system,an adjustable proportional-integral observer is designed to reconstruct the system state,as well as sensor and actuator FDI attack signals.Then,a feedback controller is designed using the reconstructed system state and actuator FDI attack signals.Furthermore,the Lyapunov functions and the finite frequency domain H∞ are used to derive the conditions required by the system to meet stability and robustness.Finally,using the linearized longitudinal dynamics of a vertical take-off and landing aircraft as a case study,the simulation results demonstrate that the proposed control strategy can effectively defend against FDI attacks on ICPS while maintaining system stability.
Keywords：industrial cyber-physical systemsfalse data injection attacksobserverstate reconstructionsecure controlfinite frequency domainrobustness
Publication Date：2026-01-30
Online Publishing Date：2026-02-05(First online date of this platform, not the publication date of the document)
Pages：11( 216-226 )