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Article Dans Une Revue International Journal of Robust and Nonlinear Control Année : 2021

Finite-gain L1 Event-triggered Interval Observers design for Continuous-time Linear Systems

Résumé

This work introduces the design of finite-gain L1 interval observers based on an event-triggered mechanism for linear continuous-time systems in the presence of unknown-but-bounded uncertainties with a priori known bounds (state disturbances and measurement noises). In addition, the times when the measurements are required in the estimation procedure are driven by an event-triggered mechanism. A dynamic event-triggered condition, which depends on the width of the feasible domain of the system's uncertainties and the width of the estimated state enclosures, is established. The proposed event-triggered strategy guarantees the existence of a positive lower bound on the inter-event times, which avoids the Zeno phenomenon. Moreover, the L1-stability of the estimation error is ensured while using as less as possible sensors data. Finally, simulation results are given to illustrate the effectiveness of the proposed method.

Domaines

Automatique
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Dates et versions

hal-02517254 , version 1 (24-03-2020)

Identifiants

Citer

Djahid Rabehi, Nacim Meslem, Nacim Ramdani. Finite-gain L1 Event-triggered Interval Observers design for Continuous-time Linear Systems. International Journal of Robust and Nonlinear Control, 2021, 31 (9), pp.4131-4153. ⟨10.1002/rnc.5463⟩. ⟨hal-02517254⟩
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