SICE Journal of Control, Measurement, and System Integration
Online ISSN : 1884-9970
Print ISSN : 1882-4889
ISSN-L : 1882-4889
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Cycling-Based Synthesis of Robust Output Estimators for Uncertain LPTV Systems
Yohei HOSOEMitsuaki MIYAMOTOTomomichi HAGIWARA
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2019 Volume 12 Issue 2 Pages 39-46

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Abstract

This paper studies a method of designing robust output estimators for discrete-time linear periodically time-varying (LPTV) systems with uncertainties. The key idea is to use not the well-known lifting technique but that called cycling for dealing with LPTV systems in the estimator synthesis. Robustness for uncertainties in the estimation is evaluated with the separator-type robust stability theorem through such cycling-based treatment of systems. An advantage of our cycling-based approach, compared to the lifting-based approach, is that we can easily introduce restrictions on the coefficients of estimators in the synthesis for predetermining the estimator period regardless of the system period.

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© 2019 The Society of Instrument and Control Engineers
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