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Traveltime and amplitude calculation using a perturbation approach
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Shin, Changsoo | - |
dc.contributor.author | Marfurt, Kurt J. | - |
dc.contributor.author | Park, Kwon Gyu | - |
dc.contributor.author | Min, Dong-Joo | - |
dc.contributor.author | Yoon, Kwangjin | - |
dc.contributor.author | Yang, Dongwoo | - |
dc.contributor.author | Ha, Taeyoung | - |
dc.contributor.author | Ko, Seungwon | - |
dc.contributor.author | Kim, Wonsik | - |
dc.contributor.author | Hong, Soonduk | - |
dc.date.accessioned | 2009-08-04 | - |
dc.date.available | 2009-08-04 | - |
dc.date.issued | 2002 | - |
dc.identifier.citation | Geophysics, 67, 1648-1655 | en |
dc.identifier.issn | 0016-8033 | - |
dc.identifier.uri | https://hdl.handle.net/10371/6123 | - |
dc.description.abstract | Accurate amplitudes and correct traveltimes are critical
factors that govern the quality of prestack migration images. Because we never know the correct velocity initially, recomputing traveltimes and amplitudes of updated velocity models can dominate the iterative prestack migration procedure. Most tomographic velocity updating techniques require the calculation of the change of traveltime due to local changes in velocity. For such locally updated velocity models, perturbation techniques can be a significantly more economic way of calculating traveltimes and amplitudes than recalculating the entire solutions from scratch. In this paper, we implement an iterative Born perturbation theory applied to the damped wave equation algorithm. Our iterative Born perturbation algorithm yields stable solutions for models having velocity contrasts of 30% about the initial velocity estimate, which is significantly more economic than recalculating the entire solution. | en |
dc.description.sponsorship | This work was financially supported by National Research
Laboratory Project of the Korea Ministry of Science and Technology, Brain Korea 21 project of the Korea Ministry of Education, grant No. R05-2000-00003 from the Basic Research Program of the Korea Science&Engineering Foundation, and grant No. PM10300 from Korea Ocean Research & Development Institute. | en |
dc.language.iso | en | en |
dc.publisher | Society of Exploration Geophysicists (SEG) | en |
dc.title | Traveltime and amplitude calculation using a perturbation approach | en |
dc.type | Article | en |
dc.contributor.AlternativeAuthor | 신창수 | - |
dc.contributor.AlternativeAuthor | 박권규 | - |
dc.contributor.AlternativeAuthor | 민동주 | - |
dc.contributor.AlternativeAuthor | 윤광진 | - |
dc.contributor.AlternativeAuthor | 양동우 | - |
dc.contributor.AlternativeAuthor | 하태영 | - |
dc.contributor.AlternativeAuthor | 고승원 | - |
dc.contributor.AlternativeAuthor | 김원식 | - |
dc.contributor.AlternativeAuthor | 홍순덕 | - |
dc.identifier.doi | 10.1190/1.1512812 | - |
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