电子测量与仪器学报

李松,高嵩,曾庆刚,辛翔,唐洪豆,吴嘉豪,袁林.无人机载探地雷达原型系统设计[J].电子测量与仪器学报,2026,40(1):201-214

无人机载探地雷达原型系统设计

Design of ground penetrating radar prototype system forunmanned aerial vehicle

DOI：

英文关键词:UAV GPR VNA low frequency air-coupled antenna prototype system

基金项目:国家重点研发计划(2022YFC3003202)项目资助

作者	单位
李松	1.成都理工大学地球勘探与信息技术教育部重点实验室成都610059；2.成都理工大学机电工程学院成都610059
高嵩	1.成都理工大学地球勘探与信息技术教育部重点实验室成都610059；2.成都理工大学机电工程学院成都610059
曾庆刚	成都理工大学机电工程学院成都610059
辛翔	成都理工大学机电工程学院成都610059
唐洪豆	成都理工大学机电工程学院成都610059
吴嘉豪	成都理工大学机电工程学院成都610059
袁林	成都理工大学机电工程学院成都610059

Author	Institution
Li Song	1.Key Laboratory of Earth Exploration and Information Technology of Ministry of Education, Chengdu University of Technology, Chengdu 610059, China; 2.School of Mechanical and Electrical Engineering, Chengdu University of Technology, Chengdu 610059, China
Gao Song	1.Key Laboratory of Earth Exploration and Information Technology of Ministry of Education, Chengdu University of Technology, Chengdu 610059, China; 2.School of Mechanical and Electrical Engineering, Chengdu University of Technology, Chengdu 610059, China
Zeng Qinggang	School of Mechanical and Electrical Engineering, Chengdu University of Technology, Chengdu 610059, China
Xin Xiang	School of Mechanical and Electrical Engineering, Chengdu University of Technology, Chengdu 610059, China
Tang Hongdou	School of Mechanical and Electrical Engineering, Chengdu University of Technology, Chengdu 610059, China
Wu Jiahao	School of Mechanical and Electrical Engineering, Chengdu University of Technology, Chengdu 610059, China
Yuan Lin	School of Mechanical and Electrical Engineering, Chengdu University of Technology, Chengdu 610059, China

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中文摘要:

为高效实现对潜在不稳定斜坡的基覆界面大深度探测，研制无人机载探地雷达。剖析频率步进连续波探地雷达体制原理，论证了无人机载探地雷达原型系统的关键参数指标。基于矢量网络分析仪的测量原理、扫频方式和能够执行时域反射测量的特点，选型轻量化N9914A手持式矢量网络分析仪开发了雷达波收发机，即使用手持终端作为上位机，部署采集软件并导入编写的脚本文件，通过网络接口控制矢量网络分析仪按时间自动存储数据文件。研制小尺寸（66 cm×10 cm×0.1 cm）低频空气耦合天线，实现频率步进连续雷达波的辐射与接收，集成了一种基于手持式矢量网络分析仪的低频无人机载探地雷达原型系统。通过原型系统的性能和收发功能测试，结果表明系统的工作带宽达到20~150 MHz，信号发射功率大于5 W，收发功能满足实验设计要求。将原型系统挂载于无人机，在四川省营山县消水镇大秧坪滑坡点开展野外试验，结果表明测线7.7′B-scan图像中的反射界面的深度约为11.5 m（土壤的相对介电常数为9），与已知地质剖面中粉质黏土与泥岩的分层界面吻合，满足大于10 m探测深度的需求。

英文摘要:

To efficiently achieve in-depth detection of the deposit-bedrock interface of potentially unstable slopes, a ground-penetrating radar for the unmanned aerial vehicle was developed. The principle of the stepped-frequency continuous wave ground-penetrating radar prototype system was analyzed, and this study demonstrated the key parameters of the unmanned aerial vehicle-borne ground-penetrating radar prototype system. Based on the measurement principle, scanning frequency mode, and the feature of being able to perform time-domain reflectometry measurement of the vector network analyzer, this study selected the lightweight N9914A handheld vector network analyzer to develop a radar transceiver. Specifically, the handheld terminal is used as the master computer, the acquisition software is deployed and the written script file is imported. And vector network analyzer is controlled through the network interface to automatically store data files by time. A small-sized (66 cm×10 cm×0.1 cm) low-frequency air-coupled antenna was developed to achieve the radiation and reception of the stepped-frequency continuous radar waves, and a prototype system of low-frequency unmanned aerial vehicle-borne ground-penetrating radar based on a handheld vector network analyzer was integrated. Through performance and transceiver function tests of the prototype system, the results show that the working bandwidth of the system reaches 20 to 150 MHz and the signal transmission power is greater than 5 W, and its transceiver function meets the requirements of the experimental design. The prototype system was mounted on an unmanned aerial vehicle, and field tests were conducted at the Dayangping landslide site in Xiaoshui Town, Yingshan County, Sichuan Province. The results show that the depth of the reflection interface in the 7.7′B scan image of the survey line is approximately 11.5 m (the relative dielectric constant of the soil is 9), which is consistent with the stratified interface of silty clay and mudstone in the known geological section, meeting the requirement of a detection depth greater than 10 m.

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