A new recurrent neurofuzzy network for identification of dynamic systems

  • Authors:
  • Marcos A. Gonzalez-Olvera;Yu Tang

  • Affiliations:
  • Edificio Bernardo Quintana, Engineering Faculty, National Autonomous University of Mexico (UNAM), Mexico City, Mexico;Edificio Bernardo Quintana, Engineering Faculty, National Autonomous University of Mexico (UNAM), Mexico City, Mexico

  • Venue:
  • ISNN'06 Proceedings of the Third international conference on Advnaces in Neural Networks - Volume Part II
  • Year:
  • 2006

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Abstract

In this paper a new structure of a recurrent neurofuzzy network is proposed. The network considers two cascade-interconnected Fuzzy Inference Systems (FISs), one recurrent and one static, that model the behaviour of a unknown dynamic system from input-output data. Each FIS’s rule involves a linear system in a controllable canonical form. The training for the recurrent FIS is made by a gradient-based Real-Time Recurrent Learning Algorithm (RTRLA), while the training for the static FIS is based on a simple gradient method. The initial parameter conditions previous to training are obtained by extracting information from a static FISs trained with delayed input-output signals. To demonstrate its effectiveness, the identification of two non-linear dynamic systems is included.