探地雷达小波域三维波动方程偏移
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Release time:2020-08-09 Impact Factor:0.829 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:地球物理学报 Place of Publication:中国 Funded by:60672042；2007FJ4055 Key Words:探地雷达; 小波域; 波动方程; 偏移 Abstract:阐述了矩阵多分辨分析理论中的标准形式与非标准形式,并以Hilbert算子为例,说明了算子多分辨表示的压缩效果,为小波域偏移算法奠定了理论基础.从三维雷达波动方程出发,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,并通过方程分裂算法及小波多分辨算法,在小波域求解波场外推矩阵,进而得到探地雷达小波域三维波动方程偏移算法,在此基础上,开发了探地雷达小波域偏移处理程序,并把该程序应用于三个球体空洞的3-D正演结果及实际的雷达数据中,通过对比偏移处理前后的雷达资料,得知该三维偏移算法能使3-D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,有利于探地雷达资料的地质解释. Co-author:戴前伟 First Author:冯德山 Indexed by:Applied Research Document Code:0001-5733(2008)02-0566-09 Discipline:地质资源与地质工程 Document Type:J Volume:51 Issue:2 Page Number:566~574 ISSN No.:0001-5733 Translation or Not:no CN No.:11-2074/P Date of Publication:2008-03-15 Included Journals:SCI -
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