A Fast Leak Locating Method Based on Wavelet Transform

被引：5

作者：

葛传虎 ^{[1
]}

杨红英 ^{[2
]}

叶昊 ^{[1
]}

王桂增 ^{[1
]}

机构：

[1] Department of Computer Science and Technology,Tsinghua University

[2] Department of Automation,Tsinghua University

来源：

Tsinghua Science and Technology | 2009年 / 14卷 / 05期

基金：

中国国家自然科学基金; 中国博士后科学基金;

关键词：

leak location; time delay estimation; wavelet transform;

D O I：

暂无

中图分类号：

TN911 [通信理论];

学科分类号：

081002 ;

摘要：

The problem of leak location is actually a time delay estimation(TDE) problem.Since most existing TDE methods may encounter the problem of high computational complexity when used for online leak location.This paper presents a fast leak locating method based on wavelet transform(WT).The method first gets a rough estimate of the time delay from the WT coefficients of the pressure signals at the largest scale,then keeps refining the estimate using WT coefficients on smaller and smaller scales.Quantitative analyses and test results based on real data show that the method reduces the computational complexity while maintaining the time delay estimation accuracy

引用

页码：551 / 555

页数：5

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