Output-based event-triggered resilient control of uncertain NCSs under DoS attacks and quantisation

Lisai Gao, Fuqiang Li and Jingqi Fu

International Journal of Systems Science, 2020, vol. 51, issue 14, 2582-2596

Abstract: This paper studies output-based resilient control of uncertain networked control systems under denial-of-service (DoS) attacks, resilient event-triggered mechanism (ETM) and quantisation. Firstly, to save constrained system resources such as network bandwidth, using information of DoS attacks and sampled outputs of plant, an output-based resilient ETM is introduced. Secondly, a switched system model is built, which characterises effects of DoS attacks, the resilient ETM, plant uncertainty and quantisation in a unified framework. Thirdly, sufficient conditions for exponential stability are obtained with less conservativeness, which establish quantitative relationships among DoS attacks, the resilient ETM, plant uncertainty, quantisation, dynamic output feedback (DOF) controller and system stability. Further, co-design conditions are presented to compute parameters of the resilient ETM and DOF controller simultaneously. Finally, example illustrates effectiveness of the proposed method.

Date: 2020
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DOI: 10.1080/00207721.2020.1797923

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