Excitation design for FRF measurements in the presence of non-linear distortions

被引：23
|
作者：
Schoukens, J
Swevers, J
Pintelon, R
Van der Auweraer, H
机构：
[1] Free Univ Brussels, Dept ELEC, B-1050 Brussels, Belgium
[2] Katholieke Univ Leuven, Dept PMA, Louvain, Belgium
来源：
MECHANICAL SYSTEMS AND SIGNAL PROCESSING | 2004年 / 18卷 / 04期
关键词：
D O I：
10.1016/S0888-3270(03)00084-0
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
In this paper, we discuss optimised strategies to measure the frequency response function in the presence of (non-linear) distortions. To do so we will compare three classes of excitation signals. These signals will be used in an optimised measurement strategy, reducing the leakage effects to acceptable (user-defined) levels, allowing to separate the disturbing noise influence from the impact of non-linear contributions, and resulting in the 'best linear approximation' of the system. (C) 2003 Elsevier Ltd. All rights reserved.
引用
收藏
页码：727 / 738
页数：12
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