Accounting for multiple reflections and antenna radiation pattern in GPR signal modeling and experimental validation

被引：0
作者：
van den Bosch, I [1 ]
Lambot, S [1 ]
Acheroy, M [1 ]
Huynen, I [1 ]
Druyts, P [1 ]
机构：
[1] Microwaves UCL, B-1348 Louvaine La Neuve, Belgium
来源：
PROCEEDINGS OF THE 3RD INTERNATIONAL WORKSHOP ON ADVANCED GROUND PENETRATING RADAR | 2005年
关键词：
ground-penetrating radar; modeling; method of moments; dyadic Green's functions; experimental validation;
D O I：
10.1109/AGPR.2005.1487874
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
This paper presents an accurate model of a monostatic stepped-frequency continuous-wave (SFCW) ground-penetrating radar (GPR). The model takes into account the multiple reflections occuring between the soil, target and antenna, which is a transverse electromagnetic (TEM) ultra-wide band (UNVB) horn. Two equivalent current distributions representing the antenna radiation pattern are considered: a dipole of electric current located at the phase center of the antenna, and a Huyghens cosinusoidal distribution of electric and magnetic current located on the aperture. The model is validated by experiments, for which the targets are embedded within increasingly complex backgrounds: in free space, above a metal plane, and finally buried in a sandbox. These experiments validate altogether the radar modeling, as well as the MoM and the dyadic Green's functions (DGFs) used in the numerical algorithms.
引用
收藏
页码：135 / 140
页数：6
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