Resilient observer-based event-triggered control for cyber-physical systems under asynchronous denial-of-service attacks  

作　　者：Yifang ZHANG Zheng-Guang WU Zongze WU Deyuan MENG 

机构地区：[1]State Key Laboratory of Industrial Control Technology,Institute of Cyber-Systems and Control,Zhejiang University,Hangzhou 310027,China [2]School of Automation,Guangdong University of Technology,Guangzhou 510006,China [3]Seventh Research Division,Beihang University(BUAA),Beijing 100191,China [4]School of Automation Science and Electrical Engineering,Beihang University(BUAA),Beijing 100191,China

出　　处：《Science China(Information Sciences)》2022年第4期178-192,共15页中国科学（信息科学）（英文版）

摘　　要：We develop the resilient observer-based event-triggered control update strategy in this paper.It is utilized to achieve the input-to-state stability(ISS)of cyber-physical systems(CPSs)when there is an asynchronous denial-of-service(DoS)attack,which is launched by malicious adversaries both on measurement channel and control channel in a random attack strategy.To estimate the unmeasurable states while saving the limited networked bandwidth,an H∞observer-based event-triggered control scheme is first designed to guarantee the ISS of CPSs with economic communication.Moreover,the occurrence of Zeno behavior can be eliminated by providing the existence of a lower positive bound of any two inter-event times.Then,a recursive model of asynchronous DoS attacks is introduced.A resilient control update strategy is proposed and further analyzed to derive the stability criterion of CPSs.At last,a numerical simulation example is given to demonstrate the effectiveness of the introduced control update policy.

关 键 词：cyber-physical systems input-to-state stability asynchronous DoS attacks H∞observer eventtriggered control 

分 类 号：TP393.08[自动化与计算机技术—计算机应用技术]