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Figure compares the PP-AMO impulses response obtained with
the filter in both equation () (top) and equation ()
(bottom). Both are obtained with a value of 65#65 for the two cases.
Both impulse responses are kinematicly equal. However, the dynamically behavior
is different,
the amplitudes distribution with the filter in equation () is more accurate.
The impulse response with the filter in equation () and 65#65 is exactly the
same as ().
Figure presents a similar comparison to Figure , for the
case of converted waves. Here, we use 98#98 and vp=2.0Km/s. As in the
previous case, the same kinematic behavior occurs in both operators, but
the response with the filter in equation () is dynamically correct.
Figure shows the comparison between the PP-AMO impulse response and
the PS-AMO impulse response. The PS-AMO not only has the same saddle shape as
the PP-AMO operator, but it also exhibits a lateral movement. This lateral displacement
correspond to the asymmetry of the raypaths or the CCP transformation. The displacement
is toward the lower-left part of the cube.
both
Figure 4 PP-AMO impulse response comparison, filter in equation () (top)
and filter in equation () (bottom), with 65#65.
both2
Figure 5 PS-AMO impulse response comparison, filter in equation () (top)
and filter in equation () (bottom), with 98#98 and vp=2.0km/s.
both3
Figure 6 PP-AMO (top) vs. PS-AMO (bottom) impulse response comparison
A variation of the PS-AMO impulse response with
respect to depth is also observable in Figure .
This behavior is due to the dependence of the operator on 78#78 ratio
It is possible to observe how the impulses responses movement toward the
left is stronger for shallower events. It is also possible to detect how the
response change along the crossline coordinate.
amo2
Figure 7 PS-AMO impulses response variation with 22#22
Next: Discussion and Conclusion
Up: Prucha and Biondi: STANFORD
Previous: PS-AMO in the f-k
Stanford Exploration Project
6/7/2002