[1]袁文菊,程德福.双谱特征在地下输水管道泄漏检测中的应用[J].水土保持研究,2003,10(02):158-160.
　YUAN Wenju,CHENG Defu.Bispectrum Feature Applied to the Leakage Detection of Underground Conveying Water Pipelines[J].Research of Soil and Water Conservation,2003,10(02):158-160.
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双谱特征在地下输水管道泄漏检测中的应用

《水土保持研究》[ISSN:1005-3409/CN:61-1272/P] 卷: 10 期数: 2003年02期 页码: 158-160 栏目: 出版日期: 1900-01-01
Title:
Bispectrum Feature Applied to the Leakage Detection of Underground Conveying Water Pipelines
作者:
袁文菊, 程德福
吉林大学电子学院微弱信号实验室, 吉林, 长春130026
Author(s):
YUAN Wenju, CHENG Defu
The Weak Signal Laboratory of Jilin University, Changchun 130026, Jilin, China
关键词:
时延估计; 双谱特征; 高阶谱; 泄漏检测
Keywords:
time delay estimation; bispectrum feature; high order spectra; leakage detection
分类号:
TV672.2
摘要:
非高斯信号处理是信号处理的一个新领域.阐述了地下输水管道泄漏检测系统原理,并利用双谱时延估计法对地下输水管道漏点进行检测和定位,提高了准确性和精确性.实验结果表明,高阶谱在地下输水管道泄漏检测方面具有很大的发展潜力.
Abstract:
Researching non Gaussian signal is a new field of signal processing.The authors describe the principle of the leakage detection of underground conveying watering pipelines,and use Bispectrum Feature Time Delay Estimation to estimate the position of the goal,and then to locate it in the leakage location of underground conveying water pipelines.The experimental results indicate that high order spectrum has great potentialities in the leakage detection of underground conveying water pipelines.

参考文献/References:

[1] Chandran V,Elgar S.Bispectral analysis of two-dimentional random processes[J].IEEE Trans.ASSP,1990,38:1281-1286.
[2] Chandran V,Elgar S L.Mean and variance of estimation of the bispectrum of a harmonic random process-an analysis including leakage effects[J].IEEE Trans.Signal Processing,1991,39:2640-2651.
[3] 张贤达.现代信号处理[M].北京:清华大学出版社,1995.373-380.
[4] 王宏禹,等.自适应噪声抵消与时间延时估计[M].大连理工大学出版社,1999.398-406.
[5] 沈民奋,孙丽莎.现代随机信号与系统分析[M].北京:科学出版社,1998.237-239.

备注/Memo

收稿日期:2002-10-6
作者简介:袁文菊(1977- ),女(汉族)安徽人,吉林大学测试计量技术及仪器专业硕士研究生,研究方向为信号处理.

更新日期/Last Update: 1900-01-01