基于小波多分辨探地雷达三维正演模拟及偏移处理
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Release time:2020-08-09 DOI number:10.3969/j.issn.1672-7207.2007.04.032 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:中南大学学报(自然科学版) Place of Publication:中国 Funded by:60672042 Key Words:探地雷达；时域多分辨法；正演；偏移处理 Abstract:通过对Maxwell方程进行离散化,导出DB2-MRTD算法的探地雷达3D差分公式,并开发探地雷达MRTD法正演程序,利用该程序对三维雷达模型进行正演模拟,得到其相应的正演合成三维剖视图及切片图;通过对这些模拟结果进行分析,验证MRTD法在探地雷达三维正演中的有效性;利用爆炸反射原理和浮动坐标变换,推导出三维探地雷达波动方程差分格式,并把波场外推矩阵在小波域进行求解,进而得到探地雷达小波域三维偏移算法及偏移处理程序,把该程序应用于正演结果中。对比偏移处理前、后的雷达资料发现,该三维偏移算法能使3D正演剖面中的反射波归位、绕射波收敛,极大地提高了雷达剖面的分辨率. Co-author:戴前伟 First Author:冯德山 Indexed by:Applied Research Document Code:1672-7207(2007)04-0758-06 Discipline:地质资源与地质工程 Document Type:J Volume:38 Issue:4 Page Number:758~763 ISSN No.:1672-7207 Translation or Not:no CN No.:43-1426/N Date of Publication:2007-08-26 Included Journals:EI -
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