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

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 isnt 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.

关键词： wavelet algorithm pipeline leak filter

作者: WU Zhimin ZHOU Shidong ZHAO Huijun WANG Shuli

作者单位: School of information Science and Engineering,Jiangsu Polytechnic University, Changzhou, Jiangsu,Chi Jiangsu Key Laboratory of Oil & Gas Storage and Transportation Technology, Jiangsu Polytechnic Unive

会议类型: 国际会议

会议名称: 第八届国际测试技术研讨会(8th International Symposium on Test and Measurement)

会议地点: 重庆

会议语种:英文

页码: 1450-1453

在线出版日期: 2009-08-01（万方平台首次上网日期，不代表论文的发表时间）