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Proceedings Paper

Array of phase-shifted transmitters for GPR purposes
Author(s): Pascale Lutz; Herve Perroud; Jean-Baptiste Daban; Eric De Bazelaire
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Paper Abstract

Arrays of phase-shifted antennas, made of several singleelement antennas, are commonly used in air radar and communication systems to obtain very directive radiation patterns. In this paper, we propose to apply this technology to GPR. Firstly, a theoretical study of linear arrays is presented, allowing to determine the influences of the element number, their spacing and phase-shift. Secondly, field experiments have been carned out, consisting of Common Receiver Gathers with two single 100 MHz antennas, in order to reconstruct sections acquired with arrays of 21 transmitters and a single receiver. The results lead to greater signal to noise ratios and penetration depths. Lastly, with the aim to build an actual array of transmitters, antennas of several kinds have been made and tested.

Paper Details

Date Published: 12 April 2002
PDF: 6 pages
Proc. SPIE 4758, Ninth International Conference on Ground Penetrating Radar, (12 April 2002); doi: 10.1117/12.462197
Show Author Affiliations
Pascale Lutz, Univ. de Pau et des Pays de l'Adour (France)
Herve Perroud, Univ. de Pau et des Pays de l'Adour (France)
Jean-Baptiste Daban, Univ. de Pau et des Pays de l'Adour (France)
Eric De Bazelaire, Total Fina Elf Exploration Production (France)

Published in SPIE Proceedings Vol. 4758:
Ninth International Conference on Ground Penetrating Radar
Steven Koppenjan; Hua Lee, Editor(s)

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