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Article Dans Une Revue Automatica Année : 2021

On multi-valued observers for a class of single-valued systems

Résumé

This paper considers the observer problem for a class of nonlinear systems which are not observable, but can have a finite number of (non-converging) indistinguishable trajectories. This means that in general it does not exist a usual, i.e. single-valued, observer. Instead, a multivalued one is proposed here, allowing to estimate the full set of indistinguishable trajectories. By extending the system's dynamics, it is also possible to estimate all possible unknown inputs acting on the system. The approach is illustrated with various examples, including experiments with a magnetic levitation system.
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Dates et versions

hal-03125618 , version 1 (29-01-2021)

Licence

Paternité - Pas d'utilisation commerciale - Pas de modification

Identifiants

Citer

Jaime Moreno, Gildas Besancon. On multi-valued observers for a class of single-valued systems. Automatica, 2021, 123, pp.109334. ⟨10.1016/j.automatica.2020.109334⟩. ⟨hal-03125618⟩
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