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- W2049207734 abstract "With the widespread adoption of wavefield continuation meth ods for prestack migration, the concept of operator aliasing warrants revisiting. Whil e zero-offset migration is unaffected, prestack migrations reintroduce the issue of ope rator aliasing. Some situations where this problem arises include subsampling the shot-axes to save shot-profile migration costs and limited cross-line shot locations due to acquisit ion strategies. These problems are overcome in this treatment with the use of an appropriate source function or bandlimiting the energy contributing to the image. We detail a synthetic experiment that shows the ramifications of subsampling the shot axis and the efficac y of addressing the problems introduced with our two approaches. Further, we explain how these methods can be tailored in some situations to include useful energy residing outside of the Nyquist limits." @default.
- W2049207734 created "2016-06-24" @default.
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- W2049207734 date "2003-01-01" @default.
- W2049207734 modified "2023-09-23" @default.
- W2049207734 title "Operator aliasing in wavefield continuation migration" @default.
- W2049207734 cites W2047610020 @default.
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- W2049207734 doi "https://doi.org/10.1190/1.1817463" @default.
- W2049207734 hasPublicationYear "2003" @default.
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