探地雷达铁路轨枕干扰特性分析  

Analysis of interference characteristics of ground penetrating radar railway sleepers

作　　者：杨林 YANG Lin(School of Geophysics,Chengdu University of Technology,Chengdu 610059,China)

机构地区：[1]成都理工大学地球物理学院,成都610059

出　　处：《物探化探计算技术》2024年第4期453-461,共9页Computing Techniques For Geophysical and Geochemical Exploration

基　　金：国家重点研发计划课题(2022YFC3003202)。

摘　　要：由于铁路路基病害对铁路运输安全影响较大,探地雷达可以对路基进行高效和连续成像,因此它被广泛应用于铁路路基无损检测。在应用探地雷达对铁路路基病害进行检测时,轨枕干扰会影响路基病害的识别和定位,因此需要研究合适的处理方法对轨枕干扰进行有效地抑制。笔者分析了轨枕干扰的时域、频域、空域、时频域、空频域以及统计相关性的特性,发现了轨枕干扰在时域、频域、空域、时频域、空频域都有不同程度的重叠现象,并且从统计相关性上来看,整体较高。此外,探地雷达铁路轨枕干扰特性还为选择轨枕干扰抑制方法提供了依据。Diseases of railway subgrade may affect the safety of railway transportation.Ground penetrating radar can perform efficient and continuous imaging of subgrades and has been widely used in non-destructive testing of railway subgrades.When ground penetrating radar is used to detect railway subgrade diseases,sleeper interference affects the identification and location of subgrade diseases.The characteristics of sleeper interference in the time domain,frequency domain,space domain,time-frequency domain,space-frequency domain,and statistical correlation are analyzed,respectively,which provides a basis for further selection of sleeper interference suppression methods.

关 键 词：探地雷达 路基病害 轨枕干扰特性分析 

分 类 号：U213.3[交通运输工程—道路与铁道工程]