Abstract
A major part of the unwanted signals in seismic data consists of waves which are scattered at heterogeneities near the surface of the earth. In the present paper we present a method to remove these waves. We formulate the scattering process within the distorted Born approximation in a background medium consisting of thin, laterally varying, layers. It is vital to be able to compute the propagation in the background medium in an efficient way. To this extent a modal approach is used, where the Green’s functions consist of vertical modes and horizontal rays. The formulation for the scattered field then consists of factors accounting for lateral propagation, and a factor representing mode-to-mode scattering.
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© 1997 Springer-Verlag
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Ernst, F., Herman, G. (1997). Scattering of guided waves in laterally varying layered media. In: Chavent, G., Sabatier, P.C. (eds) Inverse Problems of Wave Propagation and Diffraction. Lecture Notes in Physics, vol 486. Springer, Berlin, Heidelberg. https://doi.org/10.1007/BFb0105778
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DOI: https://doi.org/10.1007/BFb0105778
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