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- W2020588372 abstract "Most subsurface imaging of the Earth is accomplished using seismic migration, which uses the entire wave forms recorded at the surface. The traditional method for performing migration was to use the Kirchhoff integral using a ray-based Green function to backproject the recorded data to positions of reflectors within the subsurface. Recent developments in Kirchhoff migration include the use of multivalued traveltime tables calculated with methods like wave-front construction ray tracing. Additional advances include the use of ray amplitudes calculated using dynamic ray tracing. Recently, more attention has been given to the development of wave-equation-based methods in which the recorded wave field is backprojected using some approximation to the wave equation. Wave-equation-based methods have grown in acceptance because better implementation of the backprojection operators have been developed and computing capability has allowed the generally slower methods to become more feasible." @default.
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- W2020588372 date "2002-10-25" @default.
- W2020588372 modified "2023-09-25" @default.
- W2020588372 title "Earth imaging using seismic migration" @default.
- W2020588372 doi "https://doi.org/10.1121/1.4779729" @default.
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