Initialization of Identification of Fractional Model by Output-Error Technique

被引：0
|
作者：
Khadhraoui, Abir [1 ]
Jelassi, Khaled [1 ]
Trigeassou, Jean-Claude [2 ]
Melchior, Pierre [2 ]
机构：
[1] Ecole Natl Ingn Tunis, LSE, Tunis, Tunisia
[2] Univ Bordeaux 1, Lab Integrat Mat Syst IMS APS, F-33000 Bordeaux, France
来源：
JOURNAL OF COMPUTATIONAL AND NONLINEAR DYNAMICS | 2016年 / 11卷 / 02期
关键词：
fractional order system; system identification; output-error identification; least-squares method; initialization problem; STATE;
D O I：
10.1115/1.4030541
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
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.
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收藏
页数：12
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