Improved Fourier analysis using parametric frequency-domain transfer-function estimators

被引：4
|
作者：
Vanherzeele, Joris [1 ]
Guillaume, Patrick [1 ]
Vanlanduit, Steve [1 ]
机构：
[1] Vrije Univ Brussels, AVRG, Dept Mech Engn, WERK, B-1050 Brussels, Belgium
来源：
MECHANICAL SYSTEMS AND SIGNAL PROCESSING | 2007年 / 21卷 / 04期
关键词：
parametric frequency domain technique; transfer-function estimators; rotating machinery;
D O I：
10.1016/j.ymssp.2006.08.009
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
Frequency components (or sinusoids) can be detected from noise-corrupted signals by means of FFT-based Fourier analysis techniques. The main drawbacks of FFT-based techniques are their poor frequency resolution and the presence of leakage errors. This paper shows that by means of frequency-domain transfer- function estimators it is possible to eliminate the leakage errors and to improve the resolution of the frequency estimates. The advantages of this approach are illustrated by means of both simulations and measurements performed on two applications on rotating machinery. (c) 2006 Elsevier Ltd. All rights reserved.
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页码：1704 / 1716
页数：13
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