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Non-linear Dynamic System Identification Using FLLWNN with Novel Learning Method

  • Mihir Narayan Mohanty
  • Badrinarayan Sahu
  • Prasanta Kumar Nayak
  • Laxmi Prasad Mishra
Part of the Lecture Notes in Computer Science book series (LNCS, volume 8298)

Abstract

Nonlinear dynamic systems are characterized with uncertainties in terms of structure and parameters. These uncertainties cannot be described by deterministic models. The modelling and identification of nonlinear dynamic systems through the measured experimental data is a problem in engineering and technical processes. Therefore, field of system identification have become an important area of research. Fuzzy technology is an effective tool for dealing with complex nonlinear processes that are characterized with uncertain factors. In this paper, a novel approach based on Local Linear method learning in dynamical filter weights neurons for the identification of non-linear dynamic systems is presented. The fuzzy wavelet neural network combines wavelet theory with fuzzy logic and neural networks. Learning fuzzy rules and parameter update in fuzzy wavelet neural network is based on gradient decent method. The proposed approach is said to be Fuzzy Local Linear Wavelet Neural Network based model. It has been explained through examples. The structure is tested for the identification with both wavelet neural network and Fuzzy Local Linear Wavelet Neural Network that shows the comparative performance.

Keywords

System Identification Non-linear System Wavelet Neural Network Fuzzy Wavelet Neural Network Local Linear Wavelet Neural Network Fuzzy Local Linear Wavelet Neural Network 

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Copyright information

© Springer International Publishing Switzerland 2013

Authors and Affiliations

  • Mihir Narayan Mohanty
    • 1
  • Badrinarayan Sahu
    • 1
  • Prasanta Kumar Nayak
    • 2
  • Laxmi Prasad Mishra
    • 1
  1. 1.Siksha ‘O’ Anusandhan UniversityIndia
  2. 2.Synergy Institute of TechnologyIndia

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