Genetic algorithms-based identification

Songwu Lu, M Tamer Basar

Research output: Contribution to journalConference articlepeer-review

Abstract

We study genetic algorithms (GAs)-based identification for nonlinear systems in the presence of unknown driving noise, using both feedforward multilayer neural network models and radial basis function network models. Under perfect state measurements, we first show that a standard GA-based estimation scheme, in its full potential, even though leading to a satisfactory model for state estimation, may generally not yield a sufficiently accurate system model, i.e. the parameter estimates do not secure a good approximant for the system nonlinearity. We then introduce a new approach that utilizes the robust identification scheme of [1], which leads to a good approximation of the nonlinearity in the system. Several numerical and simulation studies included in the paper demonstrate the effective use of GAs in this framework, in searching for the parameter values that lead to the 'best' finite-dimensional approximation of the nonlinearities in the system dynamics.

Original languageEnglish (US)
Pages (from-to)644-649
Number of pages6
JournalProceedings of the IEEE International Conference on Systems, Man and Cybernetics
Volume1
StatePublished - Dec 1 1995
EventProceedings of the 1995 IEEE International Conference on Systems, Man and Cybernetics. Part 2 (of 5) - Vancouver, BC, Can
Duration: Oct 22 1995Oct 25 1995

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Hardware and Architecture

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