Finite time estimation for time-varying systems with delay in the measurements

Date
2019
Advisor
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Source Title
Systems and Control Letters
Print ISSN
0167-6911
Electronic ISSN
Publisher
Elsevier
Volume
133
Issue
Pages
104551
Language
English
Type
Article
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Abstract

We build finite time observers for time-varying nonlinear systems with delays in the outputs, using a dynamic extension that computes fundamental matrices. Our observers achieve finite time convergence when no disturbances are present. When disturbances are present, we provide approximate values for the solutions, which lead to an upper bound on the approximation error after a suitable finite time. We illustrate our work in a class of systems arising in the study of vibrating membranes, where time-varying coefficients can be used to represent intermittent measurements.

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Book Title
Keywords
Observer, Stability, Time-varying
Citation
Published Version (Please cite this version)