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Secure Control Design for Networked Control Systems With Nonlinear Dynamics Under Time-Delay-Switch Attacks
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AI
DOI：10.1109/TAC.2022.3154354.png)
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Abstract
En 中文
A continuous controller is developed for a centralized network control system (NCS), which is composed of agents with nonlinear dynamics subject to a time-delay-switch (TDS) attack and additive disturbances. Since the state tracking error is unmeasurable during TDS attacks, controllers cannot use the state tracking error to coordinate the NCS. Therefore, a novel error signal is designed to address this unique challenge and enable the NCS to achieve a formation control objective. Furthermore, a TDS attack mitigation strategy is developed, which uses both learning- and model-based approaches to estimate an agent's state for TDS attack detection and compensation. Lyapunov-Krasovskii functionals are used in the stability analysis to prove that the tracking errors converge to a steady-state residual, which is a function of the system uncertainty and TDS attack properties. The leader-follower formation control problem for unmanned aerial vehicles based on a pure pursuit guidance law is selected for a simulation study to validate the performance of the proposed method.
Keywords:
Delays
Measurement uncertainty
Trajectory
Observers
Networked control systems
Time-varying systems
Nonlinear dynamical systems
Lyapunov-Krasovskii (LK)
nonlinear systems
security of networked control systems (NCSs)
time-delay-switch (TDS) attack
Journal
IF:
7
Papers:
1.3W
Citations:
6.7W
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