NON-STATIONARY ENVELOPE EXTRACTION OF AMBIENT VIBRATION SIGNALS BASED ON HILBERT TRANSFORM

被引：0

作者：

Hu, Yi-Ding ^{[1
,2
]}

Ren, Wei-Xin ^{[1
]}

机构：

[1] Cent South Univ, Sch Civil Engn, Changsha 410075, Hunan, Peoples R China

[2] Wuyi Univ, Sch Informat Engn, Jiangmen 529020, Peoples R China

来源：

INNOVATION & SUSTAINABILITY OF STRUCTURES, VOLS 1 AND 2 | 2011年

关键词：

non-stationary; envelope extraction; Hilbert Transform;

D O I：

暂无

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

The traditional Fourier analysis can extract the envelope from amplitude modulated signals, but it does not work with non-stationary signal. A new method based on Hilbert Transform is presented to extract the envelope from non-stationary amplitude modulated signal in the multiplicative composition where the non stationary signal can be separated into the non-stationary slowly-varying component and fast component. Numerical examples are given to illustrate the efficiency of the presented method.

引用

页码：514 / 518

页数：5

共 8 条

[1] PRODUCT THEOREM FOR HILBERT TRANSFORMS
BEDROSIAN, E
[J]. PROCEEDINGS OF THE IEEE, 1963, 51 (05) : 868 - &
[2] A signal decomposition theorem with Hilbert transform and its application to narrowband time series with closely spaced frequency components
Chen, Genda
Wang, Zuocai
[J]. MECHANICAL SYSTEMS AND SIGNAL PROCESSING, 2012, 28 : 258 - 279
[3] Chiang D. Y., 2011, C P SOC EXPT MECH SE, V9999, P157
[4] Farrar CR, 1999, P SOC PHOTO-OPT INS, V3727, P1063
[5] A signal decomposition or lowpass filtering with Hilbert transform?
Feldman, M.
[J]. MECHANICAL SYSTEMS AND SIGNAL PROCESSING, 2011, 25 (08) : 3205 - 3208
[6] Hilbert transform in vibration analysis
Feldman, Michael
[J]. MECHANICAL SYSTEMS AND SIGNAL PROCESSING, 2011, 25 (03) : 735 - 802
[7] Hahn S., 1996, HILBERT TRANSFORMS S, P305
[8] Zhang X. D., 2002, MODERN SIGNAL PROCES, P412

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