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dc.contributor.advisor Symes, William W.
dc.creatorWang, Chao
dc.date.accessioned 2011-07-25T02:06:03Z
dc.date.available 2011-07-25T02:06:03Z
dc.date.issued 2010
dc.identifier.urihttp://hdl.handle.net/1911/62080
dc.description.abstract This thesis develops a new computation of the objective function and gradient for normal moveout-based differential semblance (DS). The DS principle underlies a class of algorithms for seismic velocity analysis. The simplest variant of DS is based on a drastic approximation to the scattering of waves, called "normal moveout" (NMO) in the seismic literature. This simple NMO-driven DS algorithm is very fast relative to other variants based on more faithful approximations to wave physics, but nonetheless accurate enough to be used to process field data. A recent implementation of NMO-based DS demonstrated these capabilities, but it also exhibited numerical irregularity which may have affected the stability of its velocity estimates. My alternative approach avoids interpolation noise that existed in previous work and so results in more stable numerical optimization.
dc.format.mimetype application/pdf
dc.language.iso eng
dc.subjectApplied mathematics
Geophysics
Geotechnology
dc.title An alternative approach to differential semblance velocity analysis via normal moveout correction
dc.type.genre Thesis
dc.type.material Text
thesis.degree.department Computational and Applied Mathematics
thesis.degree.discipline Engineering
thesis.degree.grantor Rice University
thesis.degree.level Masters
thesis.degree.name Master of Arts
dc.identifier.citation Wang, Chao. "An alternative approach to differential semblance velocity analysis via normal moveout correction." (2010) Master’s Thesis, Rice University. http://hdl.handle.net/1911/62080.


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