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| Angle-gather time migration | |
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Next: Conclusions
Up: Fomel & Prucha: Angle-gather
Previous: Velocity sensitivity
As pointed out by Prucha et al. (1999), the angle gathers
can be conveniently formed in the frequency domain. This conclusion
follows from the simple formula (Fomel, 1996a)
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(15) |
where refers to the depth coordinate of the migrated image. In the
frequency-wavenumber domain, formula (15) takes the
trivial form
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(16) |
It indicates that angle gathers can be conveniently formed with the help
of frequency-domain migration algorithms (Stolt, 1978).
This interesting opportunity requires further research.
2013-03-03