REFERENCES

Biondi, B., 2000, Stable wide-angle Fourier-finite difference downward extrapolation of 3-D wavefields: SEP-103, 79-103.

Claerbout, J. F., 1985, Imaging the earth's interior: Blackwell Scientific Publications.

Claerbout, J., 1998a, Factorization of cross spectra: SEP-97, 337-342.

Claerbout, J., 1998b, Multidimensional recursive filters via a helix: Geophysics, 63, 1532-1541.

Rickett, J., Claerbout, J., and Fomel, S., 1998, Implicit 3-D depth migration by wavefield extrapolation with helical boundary conditions: 68th Ann. Internat. Meeting, Soc. Expl. Geophys., 1124-1127.

Ristow, D., and Ruhl, T., 1994, Fourier finite-difference migration: Geophysics, 59, no. 12, 1882-1893.

Stoffa, P. L., Fokkema, J. T., de Luna Freire, R. M., and Kessinger, W. P., 1990, Split-step Fourier migration: Geophysics, 55, no. 4, 410-421.

 

cubeplot
Figure 2 Migration of a three-dimensional zero-offset subset from the SEG/EAGE salt dome dataset by Fourier finite-differences with helical boundary conditions.