Secure Control Design for Networked Control Systems With Nonlinear Dynamics Under Time-Delay-Switch Attacks

• 成果类型: Article
• 署名作者: Sargolzaei, Arman; Zegers, Federico M.; Abbaspour, Alireza; Crane, Carl D.; Dixon, Warren E.
• 署名单位: Tennessee Technological University; State University System of Florida; University of Florida
• 刊物名称: IEEE TRANSACTIONS ON AUTOMATIC CONTROL
• ISSN/ISSBN: 0018-9286
• DOI: 10.1109/TAC.2022.3154354
• 发表日期: 2023
• 页码: 798-811
• 关键词: 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

摘要

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.