1887

Abstract

P174 Seismic Depth Migration Using Non-Uniform Gabor Frames Y. Ma* (University of Calgary) & G. Margrave (Univeristy of Calgary) SUMMARY We present a seismic depth migration algorithm which uses a discrete Gabor transform over the lateral spatial coordinates and a discrete Fourier transform over time. These transforms enable a wavefield depth extrapolation by laterally variable frequency and wavenumber dependent phase shift. The discrete Gabor transform is implemented as a windowed discrete Fourier transform where the windows are constrained to form a partition of unity (POU) meaning that they sum to one. For efficiency an adaptive partitioning scheme that relates window

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/content/papers/10.3997/2214-4609.201401852
2007-06-11
2020-07-07
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http://instance.metastore.ingenta.com/content/papers/10.3997/2214-4609.201401852
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