6533b7d6fe1ef96bd1267257

RESEARCH PRODUCT

State Observer with Round-Robin Aperiodic Sampled Measurements with Jitter

Antonino SferlazzaSophie TarbouriechLuca ZaccarianLuca Zaccarian

subject

0209 industrial biotechnologySequenceObserver (quantum physics)Noise (signal processing)020208 electrical & electronic engineeringlinear systemsSampling (statistics)02 engineering and technologyhybrid systemsAperiodic measurements Hybrid systems Linear systems Round-Robin scenario Sampled-data observerSampled-data observeraperiodic measurements[SPI.AUTO]Engineering Sciences [physics]/Automatic020901 industrial engineering & automationSettore ING-INF/04 - AutomaticaControl and Systems EngineeringControl theoryAperiodic graph0202 electrical engineering electronic engineering information engineeringState observerRound-Robin scenarioElectrical and Electronic EngineeringConstant (mathematics)JitterMathematics

description

International audience; 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.

10.1016/j.automatica.2021.109573https://hal.laas.fr/hal-03427393/document