1887
Volume 22 Number 1
  • E-ISSN: 1365-2478

Abstract

S

A checking method of digital multiple elimination and of deconvolution processing using computers and based on optical autocorrelation is first presented. Comparison between autocorrelograms before and after a single or several processing steps allows to estimate, on one hand, the strength of the deconvolution obtained, known by the study of the central parts which is in fact the signal autocorrelation, on the other hand, the multiple elimination given by the study of side parts of the autocorrelogram.

Further, an optical deconvolution procedure, is presented. For this, it is supposed that the signal is known and optically reproduced in the same way as the one of a trace. This is achieved by sphero‐cylindrical optics allowing trace to trace processing. Deconvolution is carried out in the spectral domain by inserting a filter in the Fourier plane of the optical unit, the transmission law of which expresses the Fourier transform of the antisignal. This filter device introduces a holographic technique called Fourier holography, in such a way phases as well as amplitudes are preserved.

Several results are presented from a synthetic section and also from field sections.

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2006-04-27
2020-04-03
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References

  1. Dobrin, M. B., Ingalls, A. L., and Long, J. A., 1965, Velocity and frequency filtering of seismic data using Laser light, Geophysics30, 1144–1178.
    [Google Scholar]
  2. Anstey, N. A., and Newman, P., 1966, The sectional auto‐correlogram and the sectional retro‐correlogram, part I: the sectional auto‐correlogram, Geophys. Prosp., 14, 389–426.
    [Google Scholar]
  3. Jackson, P. L., 1968, Sectional correlograms and convolution by a simple optical method Geophysics33, 747–754.
    [Google Scholar]
  4. Bourrouilh, B., 1970, Le calcul optique en lumière cohérente au service de la prospection pétrolière, Nouvelle Revue d'Optique Appliquée1, 369–383.
    [Google Scholar]
  5. Fontanel, A., et Grau, G., 1971, Corrélation optique en lumière cohérente, Geophysical Prospecting19, 98–117.
    [Google Scholar]
  6. Stroke, G. W., and Zech, R. G., 1967, Physics Letters, 25 A, N° 2, 89.
  7. Duvernoy, J., 1970, Traitement de coupes sismiques au moyen de filtres‐hologrammes. Symposium International sur les applications de l'holographie. Besançon, juillet 1970, (communication 13–4).
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