基于LMS算法的自来水漏水检测去噪算法研究  

Denoising Algorithm Research of Water Leakage Examination Based on LMS Algorithm

作　　者：李媛[1] 铁勇[1] 那顺乌力吉[1] 李树华[1] 王强[1] 

机构地区：[1]内蒙古大学理工学院电子工程系,呼和浩特010021

出　　处：《内蒙古大学学报（自然科学版）》2008年第2期172-176,共5页Journal of Inner Mongolia University：Natural Science Edition

基　　金：国家自然科学基金(60772166);内蒙古自然科学基金(200711020811)

摘　　要：由于管道泄漏很难得到纯净漏水信号和噪声信号的先验知识,因此选择LMS去噪算法.利用两路输入信号之间的相关性,对漏水信号中的噪声进行滤除.同时,为了防止强噪声的影响,进行LMS去噪之前,利用"3倍均方"准则,去除强噪声,仿真得到验证,效果较好.Because it is very difficult to obtain the apriori knowledge of pure leak signals and noise signals, the LMS denoising algorithm is chosen in the pipeline divulging detection. The leak signal, noise is filtrated by analysing the relevance of two groups of input signals. Before filtreation, the strong noise is removed by using ＂3 times of mean squares＂ criterion to prevent its influence. The simulation result indicates that the method is effective.

关 键 词：LMS 漏水信号 去强噪声 

分 类 号：TN912.35[电子电信—通信与信息系统]