Event-triggered Data-efficient Observers of Perturbed Systems

Quentin Voortman (Corresponding author), Denis Efimov, A.Y. (Sasha) Pogromskiy, Jean-Pierre Richard, Henk Nijmeijer

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Abstract

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.
Original languageEnglish
Pages (from-to)2820-2825
Number of pages6
JournalIFAC-PapersOnLine
Volume53
Issue number2
DOIs
Publication statusPublished - 2020
Event21st World Congress of the International Federation of Aufomatic Control (IFAC 2020 World Congress) - Berlin, Germany
Duration: 12 Jul 202017 Jul 2020
Conference number: 21
https://www.ifac2020.org/

Keywords

  • Discrete-time systems
  • Limited data rate
  • Observers
  • Perturbation
  • State estimation

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