Article Dans Une Revue Automatica Année : 2021

State Observer with Round-Robin Aperiodic Sampled Measurements with Jitter

Résumé

A sampled-data observer is proposed for linear continuous-time systems whose outputs are sequentially sampled via non-uniform sampling intervals repeating a prescribed Round-Robin sequence. With constant sampling intervals (jitter-free case) we provide constructive necessary and sufficient conditions for the design of an asymptotic continuous-discrete observer whose estimation error is input-to-state stable (ISS) from process disturbances and measurement noise. We use a time-varying gain depending on the elapsed time since the last measurement. With non-constant sampling intervals (jitter-tolerant case), our design conditions are only sufficient. A suspension system example shows the effectiveness of the proposed approach.

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hal-03427393 , version 1 (13-11-2021)

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Antonino Sferlazza, Luca Zaccarian, Sophie Tarbouriech. State Observer with Round-Robin Aperiodic Sampled Measurements with Jitter. Automatica, 2021, 129, pp.109573. ⟨10.1016/j.automatica.2021.109573⟩. ⟨hal-03427393⟩
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