| 在f—k域实现转换波（P—SV,SV—P）DMO |
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| 引用本文： | 耿建华,马在田.在f—k域实现转换波（P—SV,SV—P）DMO[J].石油地球物理勘探,1995,30(1):62-65. |
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| 作者姓名： | 耿建华 马在田 |
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| 作者单位： | 同济大学!200092(耿建华)，同济大学(马在田) |
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| 基金项目： | 国家自然科学基金，中国科学院资助，中国石油大然气总公司资助，大庆石油管理局资助 |
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| 摘 要： | 在Ｈａｌｅ的ＤＭＯ方法基础上，提出了一种在ｆ－ｋ域实现转换波ＤＭＯ算法。在均匀介质常速的假设条件下，引入转换波平速度的概念，对转换波旅行时方程进行双曲线近似后，便可在ｆ－ｋ域中实现转换波ＤＭＯ。文中对转换波ＤＭＯ脉冲响应作了计算，得出的结论是Ｐ－Ｐ波的脉冲响应为椭圆，Ｐ－ＳＶ，ＳＶ－Ｐ的脉冲响应均匀伪椭圆。
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| 关 键 词： | 转换波 DMO 算法 地震勘探 |
DMO for P-SV and SV-P waves in f-k domain |
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| Geng Jianhua and Ma Zaitian..DMO for P-SV and SV-P waves in f-k domain[J].Oil Geophysical Prospecting,1995,30(1):62-65. |
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| Authors: | Geng Jianhua and Ma Zaitian |
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| Abstract: | The DMO algorithm for converted waVes in fk domain is advanced on the ba-sis of Hale's DMO. The DMO for converted waves in f-k domain can be performedafter the travel time equations of converted waves are approximated to hyperbolicequations under the conditions of constant velocity in uniform medium and of con-verted-wave average velocity. The computation of pulse response of convertedxwaveDMO leads to the conclusion:the pulse response of P-P wave is an ellipse,and thepulse responses of P-SV and SV-P waves are pseudo-ellipses. |
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| Keywords: | converted wave time-distance equation average velocity DMO |
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