An evolutionary algorithm for linear systems identification

  • Authors:
  • Edmary Altamiranda;Rodrigo Calderón;Eliezer Colina Morles

  • Affiliations:
  • Instituto de Investigación y Desarrollo de Tecnologías Aplicadas IIDTA, Universidad de Pamplona, Pamplona, Colombia;Instituto de Investigación y Desarrollo de Tecnologías Aplicadas IIDTA, Universidad de Pamplona, Pamplona, Colombia;Instituto de Investigación y Desarrollo de Tecnologías Aplicadas IIDTA, Facultad de Ingeniería, Universidad de Los Andes, Mérida, Venezuela

  • Venue:
  • ISPRA'07 Proceedings of the 6th WSEAS International Conference on Signal Processing, Robotics and Automation
  • Year:
  • 2007

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Abstract

This paper presents a systems identification method, for discrete time linear systems, based on an evolutionary approach, which allows achieving the selection of a suitable structure and the parameters estimation, using non conventional objective functions. This algorithm incorporates parametric crossover and parametric mutation along a weighted gradient direction [1]. The performance of the proposed method is illustrated with computer simulations using ARX model structures, where parameters, model dynamical order and input-output delay values are estimated.