Secure Filter Design of Fuzzy Switched CPSs With Mismatched Modes and Application: A Multidomain Event-Triggered Strategy

• Published in: IEEE transactions on industrial informatics Vol. 19; no. 10; pp. 10034 - 10044
• Main Authors: Chen, Haiyang, Zong, Guangdeng, Zhao, Xudong, Gao, Fangzheng, Shi, Kaibo
• Format: Journal Article
• Language: English
• Published: Piscataway IEEE 01.10.2023; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: Convexity; Cyber-physical systems; Cyber-physical systems (CPSs); Delays; false data injection; Filter design (mathematics); Filtering theory; fuzzy switched systems; Fuzzy systems; Informatics; Information filters; mismatched mode; Optimization; Power capacitors; probabilistic event-triggered mechanism (PETM); Probabilistic logic; Switches
• ISSN: 1551-3203; 1941-0050
• DOI: 10.1109/TII.2022.3232768

This article investigates the finite-time secure filter design of fuzzy switched cyber-physical systems equipped with a resource-constraint network that may undergo false data injection attacks (FDIAs). To strike a higher level balance between the resource consumption and filtering performance, a multidomain probabilistic event-triggered mechanism (MDPETM) is initially developed. And the mode mismatched phenomenon between the filter and the system is characterized through a delayed switching signal. Based on the MDPETM and a virtual delay partitioning approach, fuzzy mismatched secure filters are first devised whose modes could differ from the system. Then, filter-mode-dependent Lyapunov functionals are created to obtain new sufficient criteria such that the filtering error achieves finite-time boundedness with extended dissipativity subject to admissible FDIAs. The filter gains are obtained by solving a set of convex optimization problems. Finally, an application-oriented example is employed to test the effectiveness and advantages of the proposed results.