A frequency measurement algorithm for non-stationary signals by using wavelet transform

被引：6
|
作者：
Seo, Seong-Heon [1 ]
Oh, Dong Keun [1 ]
机构：
[1] NFRI, KSTAR Res Ctr, Daejeon 34133, South Korea
来源：
REVIEW OF SCIENTIFIC INSTRUMENTS | 2016年 / 87卷 / 11期
关键词：
D O I：
10.1063/1.4959945
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
Scalogram is widely used to measure instantaneous frequencies of non-stationary signals. However, the basic property of the scalogram is observed only for stationary sinusoidal functions. A property of the scalogram for non-stationary signal is analytically derived in this paper. Based on the property, a new frequency measurement algorithm is proposed. In addition, a filter that can separate two similar frequency signals is developed based on the wavelet transform. Published by AIP Publishing.
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收藏
页数：3
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