SVD filtering applied to ground-roll attenuation

Detalhes bibliográficos
Autor(a) principal: Porsani, Milton José
Data de Publicação: 2010
Outros Autores: Silva, Michelângelo Gomes da, Melo, Paulo E. M., Ursin, Bjorn
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFBA
Texto Completo: http://www.repositorio.ufba.br/ri/handle/ri/5641
Resumo: Acesso restrito: Texto completo. p. 284-289.
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spelling Porsani, Milton JoséSilva, Michelângelo Gomes daMelo, Paulo E. M.Ursin, BjornPorsani, Milton JoséSilva, Michelângelo Gomes daMelo, Paulo E. M.Ursin, Bjorn2012-04-18T19:17:45Z20101742-2132http://www.repositorio.ufba.br/ri/handle/ri/5641v. 7, n. 3Acesso restrito: Texto completo. p. 284-289.We present a singular value decomposition (SVD) filtering method for attenuation of the ground roll. Before the SVD computation, normal move-out (NMO) correction is applied to the seismograms, with the purpose of flattening the reflections. SVD is performed on a small number of traces in a sliding window. The output trace is the central trace of the first few eigenimages. These contain mostly horizontally aligned signals, and other noise in the data will be suppressed. By performing this action with the sliding window moving in steps of one trace, the number of output traces is equal to the number of input traces. The new method preserves the character and frequency content of the horizontal reflections and attenuates all other type of events. We illustrate the method using land seismic data of the Tacutu basin,located in the northeast part of Brazil. The results show that the proposed method is effective and is able to reveal reflections masked by the ground roll. The new SVD filtering approach provides the results of better quality, when compared with the results obtained from the conventional f -k filtering method.Submitted by JURANDI DE SOUZA SILVA (jssufba@hotmail.com) on 2012-04-18T19:17:45Z No. of bitstreams: 1 plugin-1742-2140_7_3_007.pdf: 2472464 bytes, checksum: ad1fab59415d3a3973159e73993ce498 (MD5)Made available in DSpace on 2012-04-18T19:17:45Z (GMT). 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dc.title.pt_BR.fl_str_mv SVD filtering applied to ground-roll attenuation
dc.title.alternative.pt_BR.fl_str_mv Journal of Geophysics and Engineering
title SVD filtering applied to ground-roll attenuation
spellingShingle SVD filtering applied to ground-roll attenuation
Porsani, Milton José
SVD filtering
Ground-roll attenuation
Seismic data processing
title_short SVD filtering applied to ground-roll attenuation
title_full SVD filtering applied to ground-roll attenuation
title_fullStr SVD filtering applied to ground-roll attenuation
title_full_unstemmed SVD filtering applied to ground-roll attenuation
title_sort SVD filtering applied to ground-roll attenuation
author Porsani, Milton José
author_facet Porsani, Milton José
Silva, Michelângelo Gomes da
Melo, Paulo E. M.
Ursin, Bjorn
author_role author
author2 Silva, Michelângelo Gomes da
Melo, Paulo E. M.
Ursin, Bjorn
author2_role author
author
author
dc.contributor.author.fl_str_mv Porsani, Milton José
Silva, Michelângelo Gomes da
Melo, Paulo E. M.
Ursin, Bjorn
Porsani, Milton José
Silva, Michelângelo Gomes da
Melo, Paulo E. M.
Ursin, Bjorn
dc.subject.por.fl_str_mv SVD filtering
Ground-roll attenuation
Seismic data processing
topic SVD filtering
Ground-roll attenuation
Seismic data processing
description Acesso restrito: Texto completo. p. 284-289.
publishDate 2010
dc.date.issued.fl_str_mv 2010
dc.date.accessioned.fl_str_mv 2012-04-18T19:17:45Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://www.repositorio.ufba.br/ri/handle/ri/5641
dc.identifier.issn.none.fl_str_mv 1742-2132
dc.identifier.number.pt_BR.fl_str_mv v. 7, n. 3
identifier_str_mv 1742-2132
v. 7, n. 3
url http://www.repositorio.ufba.br/ri/handle/ri/5641
dc.language.iso.fl_str_mv eng
language eng
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.source.pt_BR.fl_str_mv DOI: 10.1088/1742-2132/7/3/007
dc.source.none.fl_str_mv reponame:Repositório Institucional da UFBA
instname:Universidade Federal da Bahia (UFBA)
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