H∞ filter design for switched descriptor systems with different derivative term matrices

Jiasheng Shi and Jun Zhao

Applied Mathematics and Computation, 2024, vol. 460, issue C

Abstract: This paper takes into consideration the H∞ filtering problem based on L2-gain analyses for switched descriptor systems. To start with, the state jumps that have been ignored for the existing results in the literature are precisely characterized for the filtering error system at the switching moments utilizing a mode-dependent coordinates transformation for the first time. Next, by utilizing multiple Lyapunov functions scheme, sufficient conditions are came up with ensuring the exponential stability as well as weighted H∞ performance for the filtering error system under average dwell time. In addition, the corresponding filter parameters are gained by solving a series of LMIs. Finally, a numerical example and the ladder step-up SC converter model certify that the presented H∞ filtering design scheme is effective.

Keywords: Switched descriptor systems; Weighted H∞ filtering; State jumps; Mode-dependent coordinates transformations; Average dwell time (search for similar items in EconPapers)
Date: 2024
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Persistent link: https://EconPapers.repec.org/RePEc:eee:apmaco:v:460:y:2024:i:c:s0096300323004630

DOI: 10.1016/j.amc.2023.128294

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