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.

引用

页数：12

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