| Focus projection of the parabolic radon transform and multiple waves separator, elimination |
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| 引用本文： | 张建贵,宋守根,袁修贵. Focus projection of the parabolic radon transform and multiple waves separator, elimination[J]. 中南工业大学学报(英文版), 2002, 9(1): 30-35. DOI: 10.1007/s11771-002-0007-1 |
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| 作者姓名： | 张建贵 宋守根 袁修贵 |
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| 作者单位： | ZHANG Jian gui，SONG Shou gen，YUAN Xiu guiCollege of Resources，Environmental and Civil Engineering，Central South University，Changsha 410083，China |
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| 基金项目： | TheKeyProgramof 9thFive YearPlanofChina (No.96 111 0 8 0 5 )andTheCross CenturyHumanResourcesDe velopmentofEducationMinistry (No .1999 0 2 ) |
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| 摘 要： | 1 ＩＮＴＲＯＤＵＣＴＩＯＮＯｎｃｏｍｍｏｎ ｍｉｄｐｏｉｎｔ (ＣＭＰ)ａｎｄｃｏｍｍｏｎ ｓｈｏｔｐｏｉｎｔ (ＣＳＰ)ｇａｔｈｅｒｓ,ｓｅｉｓｍｉｃｔｉｍｅ ｄｉｓｔａｎｃｅｃｕｒｖｅｉｎ (ｘ,ｔ)ｄｏｍａｉｎｃａｎｂｅａｐｐｒｏｘｉｍａｔｅｄａｓｈｙｐｅｒｂｏ
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| 关 键 词： | 地震勘探 地震数据处理 CMP CSP 抛物线氡变换 |
| 收稿时间： | 2001-04-16 |
Focus projection of the parabolic radon transform and multiple waves separator, elimination |
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| Zhang Jian-gui , Song Shou-gen and Yuan Xiu-gui. Focus projection of the parabolic radon transform and multiple waves separator, elimination[J]. Journal of Central South University of Technology, 2002, 9(1): 30-35. DOI: 10.1007/s11771-002-0007-1 |
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| Authors: | Zhang Jian-gui Song Shou-gen Yuan Xiu-gui |
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| Affiliation: | (1) College of Resources, Environmental and Civil Engineering, Central South University, 410083 Changsha, China |
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| Abstract: | Based on the scalar wave equation, making use of the ray approximation of the reflected seismic data (CMP or CSP gathers), the authors derive respectively the projection function of the primary waves and multiple waves at the near offset (CMP or CSP gathers) in the parabolic Radon transform(PRT)domain. From the geometric point, the authors prove that the energy of the reflection still distributes along hyperbola which has higher curvature in the PRT domain and becomes some energy masses. So the primary waves and the multiple waves which interweave each other in ( x, t ) domain can be completely separated, which helps the multiple waves eliminated by filtering or muting. It is important for the analysis of velocity and the separator and elimination of multiple waves. |
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| Keywords: | parabolic Radon transform multiple waves projection focus |
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