| 构造单程波算子的优化方法及其在偏移中的应用 |
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| 引用本文： | 张致付,孟小红,黎成威.构造单程波算子的优化方法及其在偏移中的应用[J].地球物理学进展,2008,23(4):1111-1117. |
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| 作者姓名： | 张致付 孟小红 黎成威 |
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| 作者单位： | 1. 中国地质大学地质过程与矿产资源国家重点实验室,北京100083;中国地质大学(北京)地下信息探测技术与仪器教育部重点实验室,北京,100083
2. 中国矿业大学(北京),北京,100083 |
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| 基金项目： | 国家自然科学基金，国家重点实验室基金，教育部博士点基金新教师项目 |
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| 摘 要： | 波动方程叠前深度偏移具有处理复杂构造的特点,高精度偏移方法是勘探地球物理研究方向之一,其单程波算子的构造是波动方程叠前深度偏移的重要内容.本文着重对混合域中单程波算子构造的两种优化方法进行分析,讨论他们与其他单程波算子构造方法之间相互关系,并用上述方法计算变速介质的脉冲响应及偏移Marmousi模型数据,以此说明该类方法的偏移精度.
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| 关 键 词： | 波动方程 优化方法 单程波算子 叠前深度偏移 |
| 收稿时间： | 2007-11-10 |
| 修稿时间： | 2008-2-20 |
The optimization methods of constructing one-way operator and its application in migration |
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| ZHANG Zhi-fu,MENG Xiao-hong,LI Xian-wei.The optimization methods of constructing one-way operator and its application in migration[J].Progress in Geophysics,2008,23(4):1111-1117. |
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| Authors: | ZHANG Zhi-fu MENG Xiao-hong LI Xian-wei |
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| Affiliation: | (1.StateKeyLaboratoryofGeologicalProcessesandMineralResources,ChinaUniversityofGeosciences,Beijing100083,China;2.Geo-detectionLaboratory,MinistryofEducationofChina,ChinaUniversityofGeosciences,Beijing100083,China;3.ChinaUniversityofMiningandTechnology,Beijing100083,China) |
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| Abstract: | Complex geological structures can be imaged exactly by wave-equation prestack depth migration. Therefore high precision migration method is an important study aspect of prospecting geophysics and one-way operator construction is a core problem of wave-equation prestack depth migration. Two optimization schemes, which be used to constructed one-way operator in mixed domain, are described. Firstly, their characters are analyzed, and the relations between optimization method and other methods of constructing one-way operator are given. Then In order to show precision of one-way operator constructed by two optimization methods, The impulses of varying velocity medium and migration results of Marmousi model are presented. |
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| Keywords: | wave-equation optimum method one-way operator prestack depth migration |
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