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dc.contributor.CRUESPUniversidade Estadual de Campinaspt_BR
dc.typeArtigo de periódicopt_BR
dc.titleA comparison of semblances of different order in common-reflection-surface parameter estimationpt_BR
dc.contributor.authorLima, Ept_BR
dc.contributor.authorSantos, LTpt_BR
dc.contributor.authorSchleicher, Jpt_BR
dc.contributor.authorTygel, Mpt_BR
unicamp.author.emaillucio@ime.unicamp.brpt_BR
unicamp.authorLima, Emerson Univ Catolica Pernambuco, Dept Stat & Informat, BR-50050900 Recife, PE, Brazilpt_BR
unicamp.authorSantos, Lucio T. Schleicher, Joerg Tygel, Martin Univ Estadual Campinas, Dept Appl Math, IMECC, BR-13083859 Campinas, SP, Brazilpt_BR
dc.subjectsemblancept_BR
dc.subjectcoherence measurept_BR
dc.subjectseismic attributespt_BR
dc.subjectCRSpt_BR
dc.subject.wosMigration Velocity Determinationpt_BR
dc.subject.wosDeconvolutionpt_BR
dc.subject.wosStatisticspt_BR
dc.subject.wosInversionpt_BR
dc.subject.wosAlgorithmpt_BR
dc.description.abstractConventional common-reflection-surface (CRS) parameter estimation is based on coherence analysis using the second-order semblance function. Extensions of the usual semblance can be defined by replacing second-order by higher-order quantities. Here we tested such extensions in an application to CRS parameter estimation. We found encouraging results by a natural extension of semblance to the fourth order. Numerical examples show that for low noise levels, results for all tested orders of the semblance were equivalent, whereas for high noise levels, the new fourth-order semblance function worked better in the linear search. This measure is less dependent on the aperture and noise level, thus resulting in reliable estimates of the local slope more often than when using conventional semblance.pt
dc.relation.ispartofJournal Of Geophysics And Engineeringpt_BR
dc.relation.ispartofabbreviationJ. Geophys. Eng.pt_BR
dc.publisher.cityBristolpt_BR
dc.publisher.countryInglaterrapt_BR
dc.publisherIop Publishing Ltdpt_BR
dc.date.issued2011pt_BR
dc.date.monthofcirculationJUNpt_BR
dc.identifier.citationJournal Of Geophysics And Engineering. Iop Publishing Ltd, v. 8, n. 2, n. 175, n. 184, 2011.pt_BR
dc.language.isoenpt_BR
dc.description.volume8pt_BR
dc.description.issuenumber2pt_BR
dc.description.firstpage175pt_BR
dc.description.lastpage184pt_BR
dc.rightsfechadopt_BR
dc.rights.licensehttp://iopscience.iop.org/page/copyrightpt_BR
dc.sourceWeb of Sciencept_BR
dc.identifier.issn1742-2132pt_BR
dc.identifier.wosidWOS:000294160200005pt_BR
dc.identifier.doi10.1088/1742-2132/8/2/005pt_BR
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)pt_BR
dc.description.sponsorshipWave Inversion Technology (WIT) Consortiumpt_BR
dc.description.sponsorship1Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)pt_BR
dc.date.available2014-07-30T13:39:25Z
dc.date.available2015-11-26T16:35:47Z-
dc.date.accessioned2014-07-30T13:39:25Z
dc.date.accessioned2015-11-26T16:35:47Z-
dc.description.provenanceMade available in DSpace on 2014-07-30T13:39:25Z (GMT). No. of bitstreams: 0 Previous issue date: 2011en
dc.description.provenanceMade available in DSpace on 2015-11-26T16:35:47Z (GMT). No. of bitstreams: 2 WOS000294160200005.pdf: 3987541 bytes, checksum: 66ccf995aff27e97f6704d541f1defd6 (MD5) WOS000294160200005.pdf.txt: 34745 bytes, checksum: 68752d9e7984643c3a438599204855e9 (MD5) Previous issue date: 2011en
dc.identifier.urihttp://www.repositorio.unicamp.br/jspui/handle/REPOSIP/52995
dc.identifier.urihttp://repositorio.unicamp.br/jspui/handle/REPOSIP/52995-
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