Journal
CHAOS SOLITONS & FRACTALS
Volume 39, Issue 5, Pages 2110-2118Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.chaos.2007.06.084
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Funding
- National Natural Science Foundation of, China [60204008, 60374060, 60574072]
- National 973 Program [2002CB312200]
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Parameter estimation for chaotic systems is an important issue in nonlinear science and has attracted increasing interests from various research fields, which could be essentially formulated as a multidimensional optimization problem. As a novel evolutionary computation technique, differential evolution algorithm (DE) has attracted much attention and wide applications, owing to its simple concept, easy implementation and quick convergence. However, to the best of our knowledge, there is no published work on DE for estimating parameters of chaotic systems. In this paper, a DE approach is applied to estimate the parameters of Lorenz system. Numerical simulation and the comparisons demonstrate the effectiveness and robustness of DE. Moreover, the effect of population size on the optimization performances is investigated as well. (C) 2007 Elsevier Ltd. All rights reserved.
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