期刊
NEUROCOMPUTING
卷 244, 期 -, 页码 90-101出版社
ELSEVIER
DOI: 10.1016/j.neucom.2017.03.026
关键词
Hammerstein output error model; Separable signal; Neuro-fuzzy; Colored noise
资金
- National Natural Science Foundation of China [61374044]
- Shanghai Science Technology Commission [15510722100, 16111106300]
In this paper, a neuro-fuzzy based identification procedure for Hammerstein output error model with colored noise is presented. Separable signal is used to realize the decoupling of the identification of dynamic linear part from that of static nonlinear part, and then correlation analysis method is adopted to identify the parameters of the linear part. Next, a filter is embedded to form extended Hammerstein model to calculate the noise correlation function by the information of zeros and poles of the extended model. The correlation functions which consist of the noise correlation function are applied to compensate the bias caused by colored noise. As a result, the parameters of the nonlinear part can be identified through recursive least square method. Examples results illustrate that the proposed approach has high identification accuracy and good robustness to the disturbance of colored noise. (c) 2017 Elsevier B.V. All rights reserved.
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