Avoidisng Artifacts in Phase Shift Migration
, by Stewart A. Levin
In SEP-30 Shuki Ronen and Bill Harlan discussed wrap-around and
interpolation artifacts in Stolt migration and how, via padding
and sinc function interpolation, many could be avoided. Similar
difficulties arise in phase shift migration and I will show here
how to avoid them. As a side benefit, I obtain a speedup of the
phase shift algoriwthm analogous to one used in finite difference
migration.
STANFORD