An input-output approach to H∞ reduced filter design for polytopic time-varying delay systems

This paper discusses the problem of delay-dependent robust filtering design for polytopic systems with a time-varying delay. A new model transformation is firstly applied by employing a three-term approximation for the delayed state, which leads to a smaller approximation error than the two-term app...

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Vydáno v:International journal of systems science Ročník 50; číslo 1; s. 35 - 49
Hlavní autoři: El Aiss, Hicham, Zoulagh, Taha, Hmamed, Abdelaziz, El Hajjaji, Ahmed
Médium: Journal Article
Jazyk:angličtina
Vydáno: London Taylor & Francis 02.01.2019
Taylor & Francis Ltd
Témata:
Approximation
Automatic
Delay-dependent criteria
Design engineering
Electric power
Engineering Sciences
Error analysis
filter
Filter design (mathematics)
Filtration
Linear matrix inequalities
linear matrix inequality (LMI)
Linearization
Mathematical analysis
Matrix methods
polytopic uncertainties
Reduced order filters
Time delay systems
time-varying delay
ISSN:0020-7721, 1464-5319
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Shrnutí:This paper discusses the problem of delay-dependent robust filtering design for polytopic systems with a time-varying delay. A new model transformation is firstly applied by employing a three-term approximation for the delayed state, which leads to a smaller approximation error than the two-term approximation. Then, based on the scaled small-gain Theorem combined with an appropriate Lyapunov-Krasovskii Functional, the performance analysis of the filtering error system is examined and then the full- and reduced-order filters are designed in terms of linear matrix inequalities via a simple linearisation technique. Before the end, a sufficient condition is presented to solve the problem of filtering design for a time-delay system without polytopic uncertainties. Finally, illustrative examples are presented to demonstrate the validity of the proposed methods.
Bibliografie:ObjectType-Article-1
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content type line 14
ISSN:0020-7721
1464-5319
DOI:10.1080/00207721.2018.1543474