Approximate analytical formulas for Kirchhoff migration operator.

dc.contributor.authorMartins, João Luiz
dc.date.accessioned2015-03-12T18:45:21Z
dc.date.available2015-03-12T18:45:21Z
dc.date.issued2005
dc.description.abstractTwo important tools in seismic processing––Kirchhoff migration and demigration operators –– are the basis for many imaging problems solution. Due to high numerical and computational requirements, the use of those tools for three dimensions are very computation-costly. This fact has motivated us to investigate Kirchhoff migration operations for simpler types of media in order to provide faster results to be used as an approximation for more realistic media. To obtain results with lower computational effort, a convenient environment is the so called 2.5D situation, i.e., considering 3-D wave propagation in a medium that does not vary in the horizontal direction perpendicular to the seismic line. In this case, 2-D ray-tracing is sufficient to describe the 3-D propagation effects, particularly geometric-spreading. In a medium where the parameters depend only on the depth component (1-D situation), the imaging operations only require the solution of semi-analytical integrals, which can be both precisely and immediately implemented. For some particular cases of vertical velocity distributions, approximate analytical formulas are devised for migration stacking-lines and weight functions. Several imaging algorithms present very efficient computational performance by using those models. Thus, it is possible to establish a set of cases which may be useful for validating the implementation of more complex situations.pt_BR
dc.identifier.citationMARTINS, J. L. Approximate analytical formulas for Kirchhoff migration operator. Applied Mathematics and Computation, v. 163, p. 1181-1195, 2005. Disponível em: <http://www.sciencedirect.com/science/article/pii/S0096300304002887>. Acesso em: 09 mar. 2015.pt_BR
dc.identifier.doihttps://doi.org/10.1016/j.amc.2004.06.007
dc.identifier.issn0096-3003
dc.identifier.urihttp://www.repositorio.ufop.br/handle/123456789/4593
dc.language.isoen_USpt_BR
dc.rights.licenseO periódico Applied Mathematics and Computation concede permissão para depósito do artigo no Repositório Institucional da UFOP. Número da licença: 3582561231256.pt_BR
dc.subjectKirchhoff migrationpt_BR
dc.subjectAnalytic mediapt_BR
dc.subjectStacking linept_BR
dc.subjectVertically inhomogeneous mediumpt_BR
dc.subjectWeight functionpt_BR
dc.titleApproximate analytical formulas for Kirchhoff migration operator.pt_BR
dc.typeArtigo publicado em periodicopt_BR
Arquivos
Pacote Original
Agora exibindo 1 - 1 de 1
Nenhuma Miniatura disponível
Nome:
ARTIGO_ApproximateAnalyticalFormulas.pdf
Tamanho:
300.14 KB
Formato:
Adobe Portable Document Format
Licença do Pacote
Agora exibindo 1 - 1 de 1
Nenhuma Miniatura disponível
Nome:
license.txt
Tamanho:
2.57 KB
Formato:
Item-specific license agreed upon to submission
Descrição: