A comparison of semblances of different order in common-reflection-surface parameter estimation

dc.creatorLima, E
dc.creatorSantos, LT
dc.creatorSchleicher, J
dc.creatorTygel, M
dc.date2011
dc.dateJUN
dc.date2014-07-30T13:39:25Z
dc.date2015-11-26T16:35:47Z
dc.date2014-07-30T13:39:25Z
dc.date2015-11-26T16:35:47Z
dc.date.accessioned2018-03-28T23:18:20Z
dc.date.available2018-03-28T23:18:20Z
dc.identifierJournal Of Geophysics And Engineering. Iop Publishing Ltd, v. 8, n. 2, n. 175, n. 184, 2011.
dc.identifier1742-2132
dc.identifierWOS:000294160200005
dc.identifier10.1088/1742-2132/8/2/005
dc.identifierhttp://www.repositorio.unicamp.br/jspui/handle/REPOSIP/52995
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/52995
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1271620
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.descriptionConventional 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.
dc.description8
dc.description2
dc.description175
dc.description184
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.descriptionWave Inversion Technology (WIT) Consortium
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.languageen
dc.publisherIop Publishing Ltd
dc.publisherBristol
dc.publisherInglaterra
dc.relationJournal Of Geophysics And Engineering
dc.relationJ. Geophys. Eng.
dc.rightsfechado
dc.rightshttp://iopscience.iop.org/page/copyright
dc.sourceWeb of Science
dc.subjectsemblance
dc.subjectcoherence measure
dc.subjectseismic attributes
dc.subjectCRS
dc.subjectMigration Velocity Determination
dc.subjectDeconvolution
dc.subjectStatistics
dc.subjectInversion
dc.subjectAlgorithm
dc.titleA comparison of semblances of different order in common-reflection-surface parameter estimation
dc.typeArtículos de revistas


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