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Abstract

C-31 AMPLITUDE SPECTRUM VARIATIONS DUE TO VELOCITY GRADIENT 1 J. C .OBILO 1 E. De-BAZELAIRE 2 D. ROUSSET 1 H.PERROUD 1 and D. RAPPIN 2 1 Universite de Pau Imagerie Geophysique UMR 5831 64013 Pau France Abstract For a medium described by a vertical velocity gradient the modelling of normal and oblique incidence reflections show a variation of the carrier frequency related to the parameters of the gradient. The gradient acts like a filter strongly reflecting long wavelengths leaving the shorter ones to be transmitted through it. The amplitude response with respect to the length of the gradient zone is

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/content/papers/10.3997/2214-4609-pdb.5.C031
2002-05-27
2024-03-28
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