Please use this identifier to cite or link to this item: http://hdl.handle.net/2440/127440
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Type: Journal article
Title: Asynchronous filtering for discrete-time switched T-S fuzzy systems
Author: Shi, S.
Fei, Z.
Shi, P.
Ahn, C.K.
Citation: IEEE Transactions on Fuzzy Systems, 2020; 28(8):1531-1541
Publisher: Institute of Electrical and Electronics Engineers
Issue Date: 2020
ISSN: 1063-6706
1941-0034
Statement of
Responsibility: 
Shuang Shi, Zhongyang Fei, Peng Shi, Choon Ki Ahn
Abstract: In this paper, asynchronous H∞ filtering is studied for discrete-time switched Takagi–Sugeno (T–S) fuzzy systems. New Lyapunov functions are constructed for switched systems with asynchronous switching between subsystems and candidate filters. These improved Lyapunov functions are dependent on the mode of filters instead of subsystems, which are more consistent with the switching mechanism of switched systems with asynchronous switching. Meanwhile, they are quasi-time-dependent, which are effective in achieving more general results than traditional time-independent Lyapunov functions. Based on the new Lyapunov functions, a stability and ℓ2 -gain criterion is deduced for switched T–S fuzzy systems. Then, switched fuzzy filters are designed to guarantee that the filtering error system is globally uniformly asymptotically stable and has a prescribed H∞ performance. At last, an illustrative example is provided to demonstrate the potentials and advantages of the proposed filtering scheme.
Keywords: Asynchronous switching; discrete-time switched T–S fuzzy system; H∞ filtering; mode-dependent hybrid dwell time
Rights: © 2019 IEEE. Personal use is permitted, but republication/redistribution requires IEEE permission.
RMID: 1000025235
DOI: 10.1109/TFUZZ.2019.2917667
Grant ID: http://purl.org/au-research/grants/arc/DP170102644
Appears in Collections:Computer Science publications

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