Skip navigation
Universidade Federal da Bahia |
Repositório Institucional da UFBA
Use este identificador para citar ou linkar para este item: https://repositorio.ufba.br/handle/ri/8014
Tipo: Artigo de Periódico
Título: Remigration of ground-penetrating radar data
Título(s) alternativo(s): Journal of Applied Geophysics
Autor(es): Jaya, Makky S.
Botelho, Marco Antonio Barsottelli
Hubral, Peter
Liebhardt, Gerd
Autor(es): Jaya, Makky S.
Botelho, Marco Antonio Barsottelli
Hubral, Peter
Liebhardt, Gerd
Abstract: 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.
Palavras-chave: GPR
Migration
Exploding reflector
Velocity scan
URI: http://www.repositorio.ufba.br/ri/handle/ri/8014
Data do documento: 1999
Aparece nas coleções:Artigo Publicado em Periódico (IGEO)

Arquivos associados a este item:
Arquivo Descrição TamanhoFormato 
Jaya.pdf
  Restricted Access
6,54 MBAdobe PDFVisualizar/Abrir Solicitar uma cópia
Mostrar registro completo do item Visualizar estatísticas


Os itens no repositório estão protegidos por copyright, com todos os direitos reservados, salvo quando é indicado o contrário.