Corrections for frequency, amplitude and phase in a fast Fourier transform of a harmonic signal

被引：96
|
作者：
Ming, X
Kang, D
机构：
[1] Automobile Faculty, Chongqing University, Chongqing
来源：
MECHANICAL SYSTEMS AND SIGNAL PROCESSING | 1996年 / 10卷 / 02期
关键词：
D O I：
10.1006/mssp.1996.0015
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
This paper advances a new method which can correct the spectrum peak value of the rms spectrum in order to decrease the errors that exist when the spectral line is not on the peak. The authors first use the barycentre of spectral lines in the main lobe to obtain the coordinate of the spectrum peak. By this means the accurate frequency, amplitude and phase of the spectrum peak are obtained. (C) 1996 Academic Press Limited
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页码：211 / 221
页数：11
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