Two migration methods based on paraxial equations in a 3D heterogeneous medium

Eliane Becache; Francis Collino; Michel Kern; Patrick Joly

doi:10.1117/12.218503

1 September 1995 Two migration methods based on paraxial equations in a 3D heterogeneous medium

Eliane Becache, Francis Collino, Michel Kern, Patrick Joly

Proceedings Volume 2571, Mathematical Methods in Geophysical Imaging III; (1995) https://doi.org/10.1117/12.218503
Event: SPIE's 1995 International Symposium on Optical Science, Engineering, and Instrumentation, 1995, San Diego, CA, United States

Abstract

We review recent work on paraxial equation based migration methods for 3D heterogeneous media. Two different methods are presented: one deals directly with the classical paraxial equations, by solving a linear system at each step in depth. The other method derives new paraxial equations that lend themselves to splitting in the lateral variables, without losing either accuracy or isotropy. We also show how to incorporate Berenger's perfectly matched layers in this framework. We detail the discretization schemes, both for the full paraxial equations, and for the newly derived equations.

Citation Download Citation

Eliane Becache, Francis Collino, Michel Kern, and Patrick Joly "Two migration methods based on paraxial equations in a 3D heterogeneous medium", Proc. SPIE 2571, Mathematical Methods in Geophysical Imaging III, (1 September 1995); https://doi.org/10.1117/12.218503

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