1887

Abstract

Summary

Detecting and mapping small scale localized near surface inhomogeneities is an important problem in a variety of fields such as engineering, site investigation, environmental studies and archaeology. Most of the methods for imaging such local inhomogeneities are based on the use of travel-time surfaces for point-diffracted waves. In this study we consider the difference between a wave diffracted from an edge and a wave scattered from a cylinder-type object. We present an imaging technique which can be regarded as a generalization of the linear diffractor imaging method. We show that the new cylindrical approximation in some cases describes more accurately than the linear diffractor approximation, the kinematic characteristics of waves scattered on cylindrical objects with different radii.

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/content/papers/10.3997/2214-4609.201700865
2017-06-12
2024-04-19
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References

  1. Belfer, I., Bruner, I., Keydar, S., Kravtsov, A., and Landa, E.
    , 1998, Detection of shallow objects using refracted and diffracted seismic waves: Journal of Applied Geophysics, v. 38, no. 3, p. 155–168.
    [Google Scholar]
  2. Gelchinsky, B., Shtivelman, V., and Landa, E.
    , 1985, A comparative study of properties of diffracted and scattered wave fields: SEG Technical Program Expanded Abstracts 1985, p. 480–483.
    [Google Scholar]
  3. Kanasewich, E.R., and Phadke, S.M.
    , 1988, Imaging discontinuities on seismic sections: GEOPHYSICS, v. 53, no. 3, p. 334–345.
    [Google Scholar]
  4. Keydar, S., Mikenberg, M., Shtivelman, V., and Rochlin, I.
    , 2016, Imaging Shallow Linear Diffractors by 3D Weighted Multipath Summation: 78th EAGE Conference & Exhibition 2016.
    [Google Scholar]
  5. Landa, E., and Keydar, S.
    , 1998, Seismic monitoring of diffraction images for detection of local heterogeneities: GEOPHYSICS, v. 63, no. 3, p. 1093–1100.
    [Google Scholar]
  6. Landa, E., Shtivelman, V., and Gelchinsky, B.
    , 1987, A method for detection of diffracted waves on common-offset sections: Geophysical Prospecting, v. 35, no. 4, p. 359–373.
    [Google Scholar]
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