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Authors: Carcione, J. M.*
Feliciangeli, L. P.*
Zamparo, M.*
Title: The exploding-reflector concept for ground-penetrating-radar modeling
Issue Date: 2002
Series/Report no.: 45 (3-4)
Keywords: exploding reflector
zero-offset section
GPR modeling
Abstract: The simulation of a stacked radargram requires the calculation of a set of common-source experiments and application of the standard processing sequence. To reduce computing time, a zero-offset stacked section can be obtained with a single simulation, by using the exploding-reflector concept and the so-called non-reflecting wave equation. This non-physical modification of the wave equation implies a constant impedance model to avoid multiple reflections, which are, in principle, absent from stacked sections and constitute unwanted artifacts in migration processes. Magnetic permeability is used as a free parameter to obtain a constant impedance model and avoid multiple reflections. The reflection strength is then implicit in the source strength. Moreover, the method generates normal-incidence reflections, i.e. those having identical downgoing and upgoing wave paths.Exploding reflector experiments provide correct travel times of diffraction and reflection events, in contrast to the plane-wave method.
Appears in Collections:04.02.04. Magnetic and electrical methods
Annals of Geophysics

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