On joint identification of the feedback parameters for hyperchaotic systems: An optimization-based approach

Nianqiang Li, Wei Pan, Lianshan Yan, Bin Luo, Mingfeng Xu, Ning Jiang and Yilong Tang

Chaos, Solitons & Fractals, 2011, vol. 44, issue 4, 198-207

Abstract: We propose an optimization-based scheme for parameter estimation in high-dimensional chaotic systems, and the symbolic time series analysis (STSA) based method is adopted to address the estimation problem. It is shown that, when the system structure and the corresponding time series are known, the STSA-based method works better with respect to the autocorrelation function (ACF) and the mutual information (MI) technologies. Most importantly, the time delay and the feedback strength of two test systems, i.e., the Mackey–Glass system and an external-cavity semiconductor laser system, can be successfully identified using the proposed scheme. To explore the noise immunity, the influence of certain levels of noise on the STSA-based method is tested.

Date: 2011
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Persistent link: https://EconPapers.repec.org/RePEc:eee:chsofr:v:44:y:2011:i:4:p:198-207

DOI: 10.1016/j.chaos.2011.01.009

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