Kirchhoff偏移法在探地雷达正演图像处理中的应用
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Release time:2020-08-09 DOI number:10.3969/j.issn.1004-2903.2005.03.044 Affiliation of Author(s):中南大学地球科学与信息物理学院 Teaching and Research Group:中南大学应用地球物理系 Journal:地球物理学进展 Place of Publication:中国 Funded by:50099620-03-02 Key Words:克希霍夫(Kirchhoff)积分法; 探地雷达(GPR); 有限差分法; 正演模拟; 偏移 Abstract:本文首先通过对波动方程的分析,得出了声波波动方程和雷达波波动方程形式一致性,从而说明了把广泛应用在地震数据处理中的偏移技术引入到GPR资料处理中的可行性;其后说明了时域有限差分法(FDTD)的原理,并用它合成了几种常见的雷达正演剖面;最后利用Kirchhoff积分偏移法对正演所得的雷达剖面进行偏移处理,通过对比偏移处理前后的雷达正演剖面,可知Kirchhoff积分偏移法能使雷达正演剖面中的反射波的归位,绕射波收敛,从而大大地提高了雷达正演剖面的分辨率,更好地指导GPR剖面的地质解释和验证偏移方法的有效性. Co-author:冯德山, 何继善 First Author:戴前伟 Indexed by:Applied Research Document Code:1004-2903(2005)03-0849-05 Discipline:地质资源与地质工程 Document Type:J Volume:20 Issue:3 Page Number:849~853 ISSN No.:1004-2903 Translation or Not:no CN No.:11-2982/P Date of Publication:2005-09-30 -
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