** Next:** PS angle-domain transformation
** Up:** Conclusions
** Previous:** Chapter 4: PS Azimuth

I presented the converted-mode PS 3-D common-azimuth
migration operator. The difference between
this operator and the single-mode PP
operator is the use of two different velocity fields.
The stationary path approximation for converted waves
was proved through geometrical meanings, where
the stationary-path was represented with ray parameter.
The PS common-azimuth downward-continuation operator was
validated using a theoretical derivation for the
impulse response of a point-scatterer. These validation
was done through the four dimensions of the prestack
image.
The real data applications combined the solutions
for the irregular geometry and the migration cost
using the PS-AMO operator followed by the PS-CAM operator.
The results suggest that the method proposed in this
section of the thesis, the PS-AMO geometry regularization followed
by PS common-azimuth migration (PS-AMORe), produces
results significantly better than the conventional
process (PS-NoMoRe).

The PS-AMORe method enhances the main
events in the final image, improveing the continuity
of the reflectors and recovering geological features that were
lost with the traditional
method (PS-NoMoRe).

** Next:** PS angle-domain transformation
** Up:** Conclusions
** Previous:** Chapter 4: PS Azimuth
Stanford Exploration Project

12/14/2006