Investigation on negative pressure signal filtering of leak pipeline based on wavelet transform

被引：0

作者：

Wu Zhimin ^{[1
]}

Zhou Shidong ^{[1
]}

Zhao Huijun ^{[1
]}

Wang Shuli ^{[1
]}

机构：

[1] Jiangsu Polytech Univ, Sch Informat Sci & Engn, Changzhou 213016, Jiangsu, Peoples R China

来源：

ISTM/2009: 8TH INTERNATIONAL SYMPOSIUM ON TEST AND MEASUREMENT, VOLS 1-6 | 2009年

关键词：

wavelet algorithm; pipeline; leak; filter;

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：

For negative pressure signal always contain noise signal, wavelet algorithm was used to filter noise signal at the software MATLAB6.1. In the course of calculation, Haar wavelet was selected as base wavelet and level was 5. The result indicates noise signal is remove from original signal while original pinnacle detail information isn't affected. Signal-to-noise ratio of leak signal is enhance. It is make a base for the accurate leak detection and find leak point precisely.

引用

页码：1450 / 1453

页数：4