MATLAB工具箱自动识别探地雷达空洞图像技术  

MATLAB toolbox automatic recognition of GPR cavity image technology

作　　者：钟世英[1,2] 刘长飞 时文浩 ZHONG Shiying;LIU Changfei;SHI Wenhao(School of Civil Engineering,Shandong Jianzhu University,Jinan 250101,China;Key Laboratory of Building Structural Retrofitting and Underground Space Engineering(Ministry of Education),Jinan 250101,China;Qingdao Municipal Engineering Design Research Institute,Qingdao 266000,Shandong,China)

机构地区：[1]山东建筑大学土木工程学院,济南250101 [2]建筑结构加固改造与地下空间工程教育部重点实验室,济南250101 [3]青岛市市政工程设计研究院,山东青岛266000

出　　处：《计算机辅助工程》2024年第4期8-14,20,共8页Computer Aided Engineering

基　　金：国家自然科学基金(51508313);山东省自然科学基金(ZR202103070255)。

摘　　要：为实现雷达图像高效快速分析,考虑雷达发射天线与接收天线之间的距离,分析折射定律和球面波特性,提出一种偏移成像计算方法和空洞图像识别应用,运用MATLAB编写代码进行空洞信息解析并绘制二维和三维模型。结合室内实验进行误差分析,结果显示:合成模型基本位于图像相对应的位置范围内,与实际模型误差较小,在尺寸方面比较准确,可为探地雷达(ground penetrating radar,GPR)探测地下空洞的检测工作提供参考;图形用户界面(graphical user interface,GUI)整体操作简单、快速,满足高效快速分析要求。To analyze the radar images efficiently and quickly,the refraction law and spherical wave characteristics are analyzed considering the distance between the transmitting antenna and the receiving antenna of radar,and the offset imaging calculation method and the cavity image recognition application are proposed.By using MATLAB code,the cavity information is analyzed and the two-dimensional and three-dimensional models are drawn.The model error is analyzed by comparing with indoor experiments,and the results show that the synthesized model is basically located within the corresponding position range of the image,with a small error compared to the actual model,and it is relatively accurate in terms of size,and it can provide reference for the detection of underground cavities by ground penetrating radar(GPR).The overall operation of graphical user interface(GUI)is simple and fast,which meet the requirements of efficient and quick analysis.

关 键 词：探地雷达(GPR) 图像解释 成像机理 MATLAB 图形用户界面(GUI) 

分 类 号：P631.3[天文地球—地质矿产勘探] TP391.41[天文地球—地质学] TB115.1[自动化与计算机技术—计算机应用技术]