Journal
INFORMATION SCIENCES
Volume 130, Issue 1-4, Pages 165-183Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/S0020-0255(00)00074-8
Keywords
chaos control; chaotic systems; linear feedback control; nonlinear function approximation; radial basis function networks
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This paper presents a general control method based on radial basis function networks (RBFNs) for chaotic dynamical systems. For many chaotic systems that can be decomposed into a sum of a linear and a nonlinear part, under some mild conditions the RBFN can be used to well approximate the nonlinear part of the system dynamics. The resulting system is then dominated by the linear part, with some small or weak residual nonlinearities due to the RBFN approximation errors. Thus, a simple linear state-feedback controller can be devised, to drive the system response to a desirable set-point. In addition to some theoretical analysis, computer simulations on two representative continuous-time chaotic systems (the Duffing and the Lorenz systems) are presented to demonstrate the effectiveness of the proposed method. (C) 2000 Published by Elsevier Science Inc. All rights reserved.
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