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Observer-based guaranteed cost control for networked interval type-2 T-S fuzzy systems with stealthy DoS attacks and
Shiyi Fan1, Xiaoming Tang1, Xi Su1
1The Key Laboratory of Industrial Internet of Things and Networked Control, Ministry of Education, Chongqing University of Posts and Telecommunications, Chongqing, China; The College of Automation and Advanced Scientic Research Institute, Chongqing University of Posts and Telecommunications, Chongqing, China.
Abstract:
This paper investigates a guaranteed cost control method for a specific class of output feedback networked interval type-2 (IT2) T-S fuzzy systems, considering stealthy denial-of-service (DoS) attacks, dynamic hybrid-triggered mechanism, as well as bounded disturbances. First, to alleviate network transmission burden, a dynamic hybrid-triggered mechanism that integrates both time-triggered and event-triggered mechanisms is addressed. Second, closed-loop stability of the networked control systems (NCSs) is demonstrated through the quadratic boundedness (QB) technique. Then, by applying Lyapunov stability theory, sufficient conditions are provided for the stability of the considered NCS and the existence of an observer-based output feedback guaranteed cost controller. Finally, the feasibility of the proposed control strategy is demonstrated through two simulation examples.
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