A novel redundant haar lifting wavelet analysis based fault detection and location technique for telephone transmission lines

作     者：Bo, Lin Peng, Chang Liu, Xiaofeng 

作者机构：Chongqing Univ State Key Lab Mech Transmiss Chongqing 400044 Peoples R China 

出 版 物：《MEASUREMENT》 (测量)

年 卷 期：2014年第51卷第0期

页      面：42-52页

核心收录：

学科分类：08[工学] 080401[工学-精密仪器及机械] 0804[工学-仪器科学与技术] 081102[工学-检测技术与自动化装置] 0811[工学-控制科学与工程] 

主　　题：Telephone transmission lines TDR Redundant lifting scheme Adaptive morphological algorithm 

摘      要：The redundant lifting scheme is a perfect tool for wavelet decomposition and reconstruction conducted in the time domain without decimation procedure. In this paper based on the redundant haar lifting wavelet analysis and time domain reflectometry (RHLW-TDR) a novel fault detection scheme is introduced to detect the fault of the telephone transmission lines. The fault time tags are extracted directly from the wavelet detail coefficients. Furthermore, the proposed algorithm is improved to adaptive morphological redundant haar lifting wavelet analysis based time domain reflectometry (AMRHLW-TDR). Comparing to the conventional wavelet based TDR technique, the simulation test and practical experiment results verified the accuracy and convenience enhancement of the proposed methodology and its improved version. (C) 2014 Elsevier Ltd. All rights reserved.