基于波形切除反褶积的探地雷达信号处理效果  

THE EFFECT OF GROUND PENETRATING RADAR SIGNAL PROCESSING BASED ON WAVEFORM REMOVAL DECONVOLUTION

作　　者：石刚[1] 田养军[2] 杨晓华[3] 

机构地区：[1]长安大学理学院,陕西西安710064 [2]陕西省水利厅供水处,陕西西安710004 [3]长安大学公路学院,陕西西安710064

出　　处：《物探与化探》2012年第6期981-984,共4页Geophysical and Geochemical Exploration

基　　金：陕西省自然科学基金项目(2010JM7021);中央高校基本科研专项基金项目(CHD2012JC084);长安大学科技发展基金项目(2008J02)

摘　　要：探地雷达接收天线通常采用超宽频带进行记录,接收信号中含有多种干扰。为了消除探地雷达记录中的多次波干扰,提高信噪比,提出了将波形切除反褶积应用于探地雷达信号后处理的方法,提高了记录的纵向分辨率。阐述了该方法的原理和实现过程,分析了适用范围和应用条件。模型试验的结果表明雷达信号的多次干扰和随机干扰明显得到压制,图像效果明显得到改善。Multiple wave interference is usually existent in the signals recorded by the ground penetrating radar receiving antenna with ultra-wide band. To eliminate the multiple wave interference and improve the signal-to-noise ratio, this paper puts forward ground penetrating radar signal processing based on waveform removal deconvolution, describes its basic principles and implementation method, and analyzes its application range and conditions. To testify this method, the authors carried out a model test, in which PVC pipes 100 mm in diameter were used as calibration models and were embedded in sand. The results show that the multiple interference and random disturbance to the radar signals are apparently suppressed after disposal, the image becomes ＂clear＂ , and the quality of image is obviously improved.

关 键 词：探地雷达 波形切除反褶积 多次波干扰 信噪比 

分 类 号：P631[天文地球—地质矿产勘探]