| 转换波DMO及其快速算法 |
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| 引用本文： | 许世勇,耿建华,马在田. 转换波DMO及其快速算法[J]. 中国海上油气, 1999, 0(5) |
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| 作者姓名： | 许世勇 耿建华 马在田 |
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| 作者单位： | 同济大学 上海200O92 |
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| 基金项目： | 中国海洋石油总公司“九五”重点攻关项目资助 |
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| 摘 要： | 在对转换点轨迹方程作二阶近似的基础上,导出了转换波DMO的椭圆近似方程,并在f-k域实现了转换波DMO的快速算法.该方法能同时完成共转换点(CCP)的水平位置校正.文中对转换波DMO的脉冲响应作了计算对比,证明方法是可靠的,其快速算法具有很高的实用性.
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| 关 键 词： | 转换波 DMO 共转换点校正 对数拉伸 傅立叶变换 |
CONVERTED WAVE DMO AND ITS FAST ALGORITHM |
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| Xu Shiyong Geng Jianhua Ma Zaitian. CONVERTED WAVE DMO AND ITS FAST ALGORITHM[J]. China Offshore Oil and Gas, 1999, 0(5) |
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| Authors: | Xu Shiyong Geng Jianhua Ma Zaitian |
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| Abstract: | Based on an approximate second-order equation of conversion point trajectory, authors propose an approximate formula of converted wave DMO smile. Authors also develop a fast algorithm to perform converted wave DMO in f-k domain. In the performing of DMO,the common conversion points (CCP)can automatically migrate to the common middle points (CMP). Calculation of pulse responses and processing of real data show that the method is efficient and the algorithm is very fast. |
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| Keywords: | converted waves DMO smile common conversion point(CCP) logarithmic stretch fourier transform |
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