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https://repositorio.ufba.br/handle/ri/8014
metadata.dc.type: | Artigo de Periódico |
Título : | Remigration of ground-penetrating radar data |
Otros títulos : | Journal of Applied Geophysics |
Autor : | Jaya, Makky S. Botelho, Marco Antonio Barsottelli Hubral, Peter Liebhardt, Gerd |
metadata.dc.creator: | Jaya, Makky S. Botelho, Marco Antonio Barsottelli Hubral, Peter Liebhardt, Gerd |
Resumen : | Optimal electromagnetic wave propagation velocities and subsurface images for ground-penetrating radar (GPR) data can be specified by using an imaging scanning method. In addition to time-migrating the unmigrated GPR section, we remigrate the already time-migrated section by a one-step remigration operator using different velocities. This creates many time-migrated images for different constant migration velocities. In this way, the computation time for time-migration is very much reduced. Time-migrated reflector images `propagate' when the constant migration velocity is continuously changed. For this `propagation' there exists a wave-equation-type partial differential equation. Each time-migrated section can thus be viewed as a snapshot for a certain migration velocity. The time-migrated reflector images behave like `waves', called image waves. This is applied to real GPR data acquired over a concrete body within which a steel cable frame is buried. The method produces a quick velocity scan to find a reliable migration velocity leading to the best time-migrated image. |
Palabras clave : | GPR Migration Exploding reflector Velocity scan |
URI : | http://www.repositorio.ufba.br/ri/handle/ri/8014 |
Fecha de publicación : | 1999 |
Aparece en las colecciones: | Artigo Publicado em Periódico (IGEO) |
Ficheros en este ítem:
Fichero | Descripción | Tamaño | Formato | |
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Jaya.pdf Restricted Access | 6,54 MB | Adobe PDF | Visualizar/Abrir Request a copy |
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