Journal
INFORMATION SCIENCES
Volume 545, Issue -, Pages 102-117Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/j.ins.2020.07.070
Keywords
Cyber-physical-system; Denial-of-service attack; Input-to-state stability; Resilient observer-based control
Categories
Funding
- Funds of National Science of China [61621004, U1908213]
- National Postdoctoral Program for Innovative Talents [BX20200078]
- Research Fund of State Key Laboratory of Synthetical Automation for Process Industries [2018ZCX03]
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This paper presents a solution to the problem of resilient observer-based control for cyber-physical systems under Denial-of-Service attacks, by introducing interval partition technique and linear matrix inequalities to reduce the conservatism in stability analysis, and providing a design strategy to improve the resilience against DoS. Numerical example demonstrates the effectiveness of the proposed method in tolerating more intensive DoS attacks.
This paper deals with the problem of resilient observer-based control for cyber-physical systems with multiple transmissions under Denial-of-Service (DoS) attacks. Instead of adopting the existing static output feedback controller, an observer-based controller is adopted. First, based on the property that the dwell-time of DoS is bounded, an interval partition technique is introduced to reduce the conservatism of stability analysis. Second, sufficient conditions for the desired observer-based controller is provided in terms of linear matrix inequalities (LMIs). Based on the obtained conditions, a resilient observer based controller design strategy is provided to improve the resilience against DoS. Finally, a numerical example is given to show the effectiveness of the proposed interval partition technique and observer-based controller. It is shown that that more intensive DoS attacks can be tolerated. (C) 2020 Elsevier Inc. All rights reserved.
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