基于探地雷达天线方向性的直埋电缆定位方法  

Underground cable target detection method based on antenna directionality of ground penetrating radar

作　　者：李国伟 王俊波 唐琪 张殷 简淦杨 廖一帆 李果 LI Guowei;WANG Junbo;TANG Qi;ZHANG Yin;JIAN Ganyang;LIAO Yifan;LI Guo(Foshan Power Supply Bureau,Foshan 528000,China;China Southern Power Grid Research Technology Co.,Ltd,Guangzhou 510663,China;Electric Power Research Institute of China Southern Power Grid,Guangzhou 510663,China)

机构地区：[1]广东电网有限责任公司佛山供电局,佛山528000 [2]广州南网科研技术有限责任公司,广州510663 [3]南方电网科学研究院有限责任公司,广州510663

出　　处：《物探化探计算技术》2024年第6期744-751,共8页Computing Techniques For Geophysical and Geochemical Exploration

基　　金：南方电网公司科技项目(GDKJXM20220265)。

摘　　要：使用探地雷达获取直埋电缆位置信息,需对待测区域进行高密度探测。运用仿真工具,分析了探地雷达常用的bowtie天线方向性特征和探测范围,并提出了一种使用探地雷达两点旋转测量的单根直埋电缆定位方法。首先对待定区域初步探测,确定有效测点,进行旋转测量;然后记录多个测点数据,结合测点位置信息,开展向量运算,对直埋电缆位置进行定位现场模拟试验表明,该方法的定位偏差接近5%,可用于直埋电缆探测与定位。Ground penetrating radar is always used for underground cable detection,which requires high specialization and data richness.Thus,this paper analyze a bowtie antenna,which is often used in ground penetrating radar,including antenna frequency band characteristics and directionality.According to the antenna directionality,this paper proposed a rotation measurement method of ground penetrating radar to obtain effective and concise detection data.Firstly practical measurement point is determined through a preliminary exploration of the undetermined area.Rotation measurement is conducted at the effective measurement points.The underground cable position is obtained by conducting vector operation and combining measurement point information.A test was conducted to verify the method's effectiveness.The test result s s that this method's localization error is about 5%.It can be used for underground cable detection.

关 键 词：探地雷达 直埋电缆 天线方向性 空间定位 

分 类 号：P631[天文地球—地质矿产勘探]