A bad initialization of output-error (OE) technique can lead to an inappropriate identification results. In this paper, we introduce a solution to this problem; the basic idea is to estimate the parameters and the fractional order of the noninteger system by a new approach of least-squares (LS) method based on repeated fractional integration to initialize OE technique. It will be shown that LS method offers a good initialization to OE algorithm and leads to acceptable identification results. The performance of the proposed method is shown through numerical simulation examples.
Initialization of Identification of Fractional Model by Output-Error Technique
Contributed by the Design Engineering Division of ASME for publication in the JOURNAL OF COMPUTATIONAL AND NONLINEAR DYNAMICS. Manuscript received January 27, 2015; final manuscript received May 4, 2015; published online August 26, 2015. Assoc. Editor: Hiroshi Yabuno.
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Khadhraoui, A., Jelassi, K., Trigeassou, J., and Melchior, P. (August 26, 2015). "Initialization of Identification of Fractional Model by Output-Error Technique." ASME. J. Comput. Nonlinear Dynam. March 2016; 11(2): 020801. https://doi.org/10.1115/1.4030541
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