工程科学学报2016，Vol.38Issue(12)：1798-1805,8.DOI:10.13374/j.issn2095-9389.2016.12.020
基于雷达信号特征点提取的结构物埋深估算方法
Depth estimation of buried structures based on the GPR reflected waveform characteristics
摘要
Abstract
To overcome the defects of the depth estimation of buried structures by the empirical method,a new method to estimate the depth based on the reflected waveform characteristics of buried targets was put forward by extracting few points from the reflected waveform.Accuracy analysis was performed in consideration of waveform distortion.The results show that on ideal undistorted ground penetrating radar (GPR) data,the proposed method is accurate in estimating the depth and the horizontal position of buried targets,as well as the electromagnetic wave speed.An average error of 55.202％ occurs in depth estimation based on distorted waveform data even though the estimation result of wave speed is accurate as before.So the method is corrected to confirm the depth of buried targets using the estimated wave speed and the two-way travel time of the reflected wave from the structures when facing distorted GPR data,and the accuracy of estimation satisfies the requirements of the GPR method.This method is more satisfactory and robust compared with the empirical method.关键词
地质雷达/埋深估算/反射波形/数值计算/畸变Key words
ground penetrating radar (GPR) systems/depth estimation/reflected waveforms/numerical calculation/distortion分类
交通工程引用本文复制引用
高永涛,徐俊,王艳辉,张院生,谢健阳..基于雷达信号特征点提取的结构物埋深估算方法[J].工程科学学报,2016,38(12):1798-1805,8.基金项目
国家青年科学基金资助项目(51504016) （51504016）
