摘要
探地雷达具有高效、无损、分辨率高、使用灵活的特点,在道路检测方面的应用越来越广泛。根据时域有限差分(FDTD)算法,建立理想条件下道路路基充气和充水空洞模型,用GprMax及Matlab编程分别对不同形状、不同激励源频率、不同大小条件下空洞模型进行正演模拟,并对空洞模型正演模拟雷达图像进行分析。模拟结果有助于对实际探测空洞识别和雷达图像的解释,为探地雷达在路基空洞检测应用提供参考。
Ground penetrating radar has been widely used in road detection due to the features of efficient,non-destructive,high resolution and flexible.Based on the finite different time domain algorithm（FDTD）,the ideal models of roadbed cavity filled with air and water are built,GprMax and Matlab programming are used to realize forward simulation which aimed at different shapes,different center frequencies and different sizes,and then the cavity modeling simulation radar images are analyzed.Simulation results contribute to the detection of cavity and the interpretation of the radar image and references are provided for the ground penetrating radar application in cavity detection.
出处
《物探化探计算技术》
CAS
CSCD
2016年第4期480-486,共7页
Computing Techniques For Geophysical and Geochemical Exploration
基金
国家自然科学基金(41404095)
