Self-organizing adaptive fuzzy neural control for the synchronization of uncertain chaotic systems with random-varying parameters

  • Authors:

  • Da Lin;Xingyuan Wang

  • Affiliations:

  • Faculty of Electronic Information and Electrical Engineering, Dalian University of Technology, Dalian 116024, China and School of Automatic and Electronic Information, Sichuan University of Scienc ...;Faculty of Electronic Information and Electrical Engineering, Dalian University of Technology, Dalian 116024, China

  • Venue:
  • Neurocomputing
  • Year:
  • 2011

Quantified Score

Hi-index 0.01

Visualization

Abstract

This paper proposes a self-organizing adaptive fuzzy neural control (SAFNC) for the synchronization of uncertain chaotic systems with random-varying parameters. The proposed SAFNC system is composed of a computation controller and a robust controller. The computation controller containing a self-organizing fuzzy neural network (SOFNN) identifier is the principle controller. The SOFNN identifier is used to online estimate the compound uncertainties with the structure and parameter learning phases of fuzzy neural network (FNN), simultaneously. The structure-learning phase consists of the growing of membership functions, the splitting of fuzzy rules and the pruning of fuzzy rules, and thus the SOFNN identifier can avoid the time-consuming trial-and-error tuning procedure for determining the network structure of fuzzy neural network. The robust controller is used to attenuate the effects of the approximation error so that the synchronization of chaotic systems is achieved. All the parameter learning algorithms are derived based on the Lyapunov stability theorem to ensure network convergence as well as stable synchronization performance. To demonstrate the effectiveness of the proposed method, simulation results are illustrated in this paper.