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In 2-D, ADCIGs are computed for each midpoint by applying a
slant-stack decomposition to the prestack image along the
subsurface-offset axis. The kinematics of the angle-domain
transformation are defined by the following change of variable:
| |
(1) |

| (2) |

where is the transformed image-point depth.
Assuming flat reflectors and VTI media,
Biondi (2005a) demonstrates that the angle
is equal to the phase aperture angle
, thereby simplifying
equations 1 and
2:
| |
(3) |

| (4) |

** Next:** RMO analysis in ADCIGs
** Up:** Residual moveout in anisotropic
** Previous:** Generalized migration
Stanford Exploration Project

5/6/2007