|The time and space formulation of azimuth moveout|
We have applied two different theoretical approaches to AMO to find a
complete definition of the integral operator
(1). Biondi and Chemingui (1994) proposed cascading the DMO
and inverse DMO operators to define AMO in the frequency domain. The
same approach is repeated here in a simpler way by transferring the
analysis to the natural time-space domain. A new contribution to the
evaluation of the AMO operator follows from applying a different
approach, which extends the geometric theory of DMO
(Deregowski and Rocca, 1981) to the AMO case. Cascading prestack
migration and modeling allows us to evaluate the AMO operator aperture.
The compactness of the AMO aperture indicates that the integral operator can be
performed at a low cost and therefore
promises economic benefits for its practical implementation.