A design of CMAC-based fuzzy logic controller with fast learning and accurate approximation

  • Authors:
  • Daijin Kim

  • Affiliations:
  • Department of Computer Science and Engineering, POSTECH, San 31, Hyoja Dong, Nam-Gu, Pohang, 790-784, South Korea

  • Venue:
  • Fuzzy Sets and Systems - Fuzzy control
  • Year:
  • 2002

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Abstract

This paper proposes a CMAC-based fuzzy logic controller (FLC) with a fast learning capability and an accurate approximation ability. The proposed CMAC-based FLC has the fast learning capability because it pursuits the local generalization and only a small number of activated units in the network are participated in the forward and backward computation. It also produces an accurate input-output approximation ability, because it adjusts the MF's model parameters of the input and output variables simultaneously and it considers both centers and widths of output membership functions to compute a crisp defuzzified value. Application to the truck backer-upper control problem of the proposed CMAC-based FLC is presented. Simulation results validate the fast learning and the accurate approximation of the proposed CMAC-based FLC.