Development of an advanced noise reduction method for vibration analysis based on singular value decomposition

被引：155

作者：

Yang, WX ^{[1
]}

Tse, PW

机构：

[1] Nottingham Trent Univ, Sch Engn, Nottingham NG1 4BU, England

[2] Northwestern Polytech Univ, Inst Vibrat Engn, Xian 710072, Peoples R China

[3] City Univ Hong Kong, Dept Mfg Engn & Engn Management, Hong Kong, Hong Kong, Peoples R China

来源：

NDT & E INTERNATIONAL | 2003年 / 36卷 / 06期

基金：

中国国家自然科学基金;

关键词：

singular value decomposition; singular entropy; noise reduction;

D O I：

10.1016/S0963-8695(03)00044-6

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The paper developed a reasonable and practical method for identifying the useful information from the signal that has been contaminated by noise, so that to provide a feasible tool for vibration analysis. A new concept namely the Singular Entropy (SE) was proposed based on the singular value decomposition technique. With the aid of the SE, a series of investigations were done for discovering the distribution characteristics of noise contaminated and pure signals, and consequently an advanced noise reduction method was developed. The experiments showed that the proposed method was not only applied for dealing with the stationary signals but also applied for dealing with the non-stationary signals. (C) 2003 Elsevier Science Ltd. All rights reserved.

引用

页码：419 / 432

页数：14

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