Realistic modeling of surface georadar antenna systems

Détails

ID Serval
serval:BIB_F66126B8B103
Type
Actes de conférence (partie): contribution originale à la littérature scientifique, publiée à l'occasion de conférences scientifiques, dans un ouvrage de compte-rendu (proceedings), ou dans l'édition spéciale d'un journal reconnu (conference proceedings).
Collection
Publications
Titre
Realistic modeling of surface georadar antenna systems
Titre de la conférence
73rd SEG Annual Meeting, Dallas, Texas
Auteur⸱e⸱s
Holliger K., Lampe B., Meier U., Lambert M.
Editeur
Society of Exploration Geophysicists
ISSN-L
1052-3812
Statut éditorial
Publié
Date de publication
2003
Pages
NSG 1.1
Langue
anglais
Résumé
The generation and recording of electromagnetic waves by georadar
systems are complex phenomena. To investigate the characteristics
of typical surface georadar antennas operating in realistic environments,
we have developed an antenna simulation tool based on a finite-difference
timedomain (FDTD) approximation of Maxwell''s equations in 3-D Cartesian
coordinates. The accuracy of the algorithm is validated with respect
to laboratory measurements for comparable antenna systems. Numerically
efficient and accurate modeling of small antenna structures and high
permittivity materials is achieved via subgridding. The antenna panels
are modeled either as perfect electrical conductors or as thin material
sheets of finite, spatially variable electrical conductivity. We
simulate the radiation characteristics of a wide range of common
surface georadar antenna types ranging from thin-wire antennas to
bow-tie antennas with arbitrary flare angles.
Création de la notice
25/11/2013 18:28
Dernière modification de la notice
20/08/2019 16:22
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