交通节能与环保2026，Vol.22Issue(3)：88-93,6.DOI:10.3969/j.issn.1673-6478.2026.03.018
基于GprMax的地下梯形空洞形状特征对探地雷达图像影响规律研究
Influence of Geometric Shape of UndergroundTrapezoidal Cavity on Ground Penetrating Radar Image Features Based on GprMax
摘要
Abstract
To gain a deeper understanding of the GPR response to trapezoidal cavities with varying geometries,this study employs the GprMax software to conduct forward simulations of trapezoidal cavities with different waist slopes and filling media and systematically analyzes the influence of trapezoidal cavity geometry and filling media on radar signals.The results indicate that the upper base of the inverted trapezoidal cavity causes significant attenuation of the reflected signal and is more likely to cause multiple reflections.In contrast,the B-scan image of a normal trapezoidal cavity clearly displays its outer contour.It is also found that as the waist slope k of the trapezoidal cavity gradually decreases,the reflected signal received by the radar becomes stronger.For cavities filled with air,a clear reflection signal is observable when the waist slope k<2.For cavities filled with water,a clear reflection signal is observable when the waist slope k<4/3.关键词
探地雷达/图像解释/正演模拟/梯形空洞/几何形状Key words
GPR/image interpretation/forward simulation/trapezoidal cavity/geometric shape分类
交通工程引用本文复制引用
何人杰,瞿科强,惠炜,陈名疆,王晋国,侯兆阳..基于GprMax的地下梯形空洞形状特征对探地雷达图像影响规律研究[J].交通节能与环保,2026,22(3):88-93,6.基金项目
国家自然科学基金(52401168) （52401168）
