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Article Dans Une Revue International Journal of Control Année : 2015

A note on Interval Observer Design for Unknown Input Estimation

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.

Domaines

Automatique
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Dates et versions

hal-01158918 , version 1 (02-06-2015)

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Citer

David Gucik-Derigny, Tarek Raïssi, Ali Zolghadri. A note on Interval Observer Design for Unknown Input Estimation. International Journal of Control, 2015, http://www.tandfonline.com/doi/abs/10.1080/00207179.2015.1057230. ⟨10.1080/00207179.2015.1057230⟩. ⟨hal-01158918⟩
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