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The RPrSM equations in three dimensions can be written similarly to
those in two dimensions if we consider the relationship between
source-geophone and midpoint-offset coordinates as follows:

The equivalent prestack residual migration equation in source-geophone
coordinates thus becomes
| |
(7) |

In midpoint-offset coordinates, the same equation becomes
| |
(8) |

which, for the post-stack case, takes the form
| |
(9) |

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Stanford Exploration Project

6/30/1999