Study of Wavelet Packet in the Electromagnetic Acoustic Emission Signal Processing

被引：0

作者：

Liu, Suzhen ^{[1
]}

Zhai, Jun ^{[1
]}

Zhang, Chuang ^{[1
]}

Yang, Qingxin ^{[1
]}

机构：

[1] Hebei Univ Technol, Tianjin 300130, Peoples R China

来源：

ICEMS 2008: PROCEEDINGS OF THE 11TH INTERNATIONAL CONFERENCE ON ELECTRICAL MACHINES AND SYSTEMS, VOLS 1- 8 | 2008年

关键词：

D O I：

暂无

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

The wavelet packet plays an important role in the signal processing of electromagnetic acoustic emission. It can eliminate signals noise, and basing on it, improves the accuracy of acoustic emission source location. The wavelet packet algorithm is a further breakdown of orthogonal wavelet decomposition; it allows the observation of characteristics of signal transaction in a narrower band, so it increases the analysis resolution. In this paper, we show detail of research on signal decomposition and reconstruction, and how to calculate the time difference, then how to achieve acoustic emission (AE) source location and the improvement on the accuracy of AE source location.

引用

页码：862 / 865

页数：4

共 6 条

[1] THE WAVELET TRANSFORM, TIME-FREQUENCY LOCALIZATION AND SIGNAL ANALYSIS [J].