Now we present a brief example of the migration algorithm at work.
We constructed a simple model of three point diffractors in a constant
velocity (2000 m/s) volume to test our algorithm.
The dimensions of the model space
are m^{3}, or about 1 km^{3},
sampled at 15m intervals.
The three point diffractors exist along the diagonal of the cube at
(*x*,*y*,*z*) coordinates (225,225,225)m, (465,465,465)m, and
(705,705,705)m. 3-D synthetic seismograms were generated with the Kirchhoff
modeling algorithm `Land3d` that one of us (Biondo)
has written for the CM. A
zero-phase bandpass wavelet was applied with upper and lower frequency cutoffs
at 10Hz and 50Hz respectively.

12/18/1997