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Next: Angle transformation in wave-equation
Up: Imaging condition in wave-equation
Previous: Time-shift imaging condition
To be even more general, we can formulate an imaging condition
involving both space-shift and time-shift,
followed by image extraction at zero time:
However, the cost involved in this transformation is large,
so this general form does not have immediate practical value.
Imaging conditions described by equations
(3)-(4) and
(6)-(7) are special cases of
equations (9)-(10)
for
and
, respectively.
2007-04-08