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State and Unknown Input H ∞ Observers for Discrete‐Time LPV Systems

Abstract : This paper proposes state and unknown input (UI) observers for linear parameter varying (LPV) systems affected by UI and perturbations in both state and measurement equations. The estimation is done by minimizing the L2 transfer between the perturbations and the state estimation error (H∞-observation). The originality of the paper is to provide a generalization of existing works, specially by relaxing an assumption on systems matrices, widely used for UI decoupling. After giving the main results, some examples illustrate the theoretical contributions and give comparisons to former publications.
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https://hal.archives-ouvertes.fr/hal-01964809
Contributor : Frédéric Davesne <>
Submitted on : Sunday, December 23, 2018 - 6:59:32 PM
Last modification on : Sunday, February 9, 2020 - 11:45:10 PM

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Luc Meyer, Dalil Ichalal, Vincent Vigneron. State and Unknown Input H ∞ Observers for Discrete‐Time LPV Systems. Asian Journal of Control, Asian Control Association (ACA) and Chinese Automatic Control Society (CACS) 2020, 22 (1), pp.49--62. ⟨10.1002/asjc.1972⟩. ⟨hal-01964809⟩

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