[GRZ16] A note on Interval Observer Design for Unknown Input Estimation

Revue Internationale avec comité de lecture : Journal International Journal of Control, vol. 89(1), pp. 25-37, 2016

Mots clés: Interval estimation; unknown input; observer; state transformation; robustness; uncertainties

Résumé: This paper addresses the problem of interval observer design for unknown input estimation in Linear Time-Invariant (LTI) systems. Although the problem of unknown input estimation has been widely studied in the literature, the design of joint state and unknown input observers has not been considered within a set-membership context. While conventional interval observers could be used to propagate, with some additional conservatism, unknown inputs by considering them as disturbances, the proposed approach allows their estimation. Under the assumption that the measurement noise and the disturbances are bounded, lower and upper bounds for the unmeasured state and unknown inputs are computed. Numerical simulations are presented to show the efficiency of the proposed approach.

Equipe: laetitia


@article {
title="{A note on Interval Observer Design for Unknown Input Estimation}",
author="D. GUCIK-DERIGNY and T. Raïssi and A. Zolghadri",
journal="International Journal of Control",