Sun, Ying; Ding, Derui; Dong, Hongli; Liu, Hongjian Event-based resilient filtering for stochastic nonlinear systems via innovation constraints. (English) Zbl 1478.93696 Inf. Sci. 546, 512-525 (2021). Summary: This paper considers the problem of event-based resilient filtering for a class of stochastic nonlinear systems subject to the impact of outliers. The transmitted data governed by an event-based communication protocol could suffer from malicious attacks due mainly to the network unreliability, which gives rise to the phenomena of outliers or abnormal values. A factitious saturation constraint on innovations is carried out to remove these abnormal data in the designed filter in order to improve the filtering reliability. Furthermore, a gain variation is also taken into account to realize the resilient requirement of the designed filtering scheme. By virtue of the Lyapunov stability theory, a sufficient condition is derived to check the ultimate boundedness of filtering error dynamics in mean-square sense. Furthermore, an analytic formula of the desired filter gain and the ultimate bound of filtering errors are obtained through the utilization of matrix inequality techniques. Finally, some simulation results are provided to illustrate the superiority of the developed filtering scheme. Cited in 6 Documents MSC: 93E11 Filtering in stochastic control theory 93C65 Discrete event control/observation systems 93C10 Nonlinear systems in control theory Keywords:innovation constraints; malicious attacks; event-triggered protocols; resilient filtering; ultimate boundedness PDFBibTeX XMLCite \textit{Y. Sun} et al., Inf. Sci. 546, 512--525 (2021; Zbl 1478.93696) Full Text: DOI References: [1] Adloo, H.; Shafiei, M., A robust adaptive event-triggered control scheme for dynamic output-feedback systems, Inf. 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