MATLAB工具箱自动识别探地雷达空洞图像技术

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中图分类号：P631.3；TP391.41；TB115.1 文献标志码：B

MATLAB toolbox automatic recognition of GPR cavity image technology

ZHONG Shiying ，LIU Changfei ，SHI Wenhao3 （1.School of Civil Engineering，Shandong Jianzhu University，Jinan 250101，China；2.KeyLaboratory of Building Structural Retrofitingand Underground Space Engineering（Ministryof Education），Jinan 250101， China；3.Qingdao Municipal Engineering Design Research Institute，Qingdao 266Ooo，Shandong，China）

Abstract： To analyze the radar images eficiently and quickly，the refraction law and spherical wave characteristics are analyzed considering the distance between the transmiting antenna and the receiving antenna of radar，and the ofset 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 smalleror 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.

Key words： ground penetrating radar（GPR）；image interpretation； imaging mechanism；MATLAB； graphical user interface（GUI）

0引言

在对地下潜伏隐患的探测普查中，探地雷达扮演着越来越重要的角色。（剩余7539字）