Event-triggered Data-efficient Observers of Perturbed Systems

Quentin Voortman (1) , Denis Efimov (2) , Alexander Pogromsky (3) , Jean-Pierre Richard (4) , Henk Nijmeijer (1)

1 TU/e - Eindhoven University of Technology [Eindhoven]
2 VALSE - Finite-time control and estimation for distributed systems
3 Department of Mechanical Engineering [Eindhoven]
4 Centrale Lille

In this paper, an event-triggered, data-rate constrained observer for discrete-time linear systems with perturbations is presented. The system is connected to a remote location by a communication channel which can only transmit limited numbers of bits per time interval. The system is subject to perturbations in its state as well as errors in the output measurement. The objective is to reconstruct estimates of the state at the remote location, by sending messages over the communication channel. A new type of data-rate constrained observer which can be more efficient in terms of communication rate is presented. Relation between an admissible communication rate and the system parameters is evaluated. The observer's efficiency is illustrated by simulations.

Mots clés: Observers; State estimation; Limited data rate; Discrete-time Systems; Perturbation

Domaines: Automatique / Robotique

Quentin Voortman, Denis Efimov, Alexander Pogromsky, Jean-Pierre Richard, Henk Nijmeijer. Event-triggered Data-efficient Observers of Perturbed Systems. IFAC 2020 - 21rst IFAC World Congress, Jul 2020, Berlin, Germany. ⟨hal-02634571⟩