Investigating the Performance of Bi-Static GPR Antennas for Near-Surface Object Detection
Antennas are an important component in ground penetrating radar (GPR) systems. Although there has been much research reported on the design of individual antennas, there is less research reported on the design of the geometry of bi-static antennas. This paper considers the effects of key parameters...
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doaj-a0e3758e6e144e9593d186638ceab2582020-11-24T23:24:42ZengMDPI AGSensors1424-82202019-01-0119117010.3390/s19010170s19010170Investigating the Performance of Bi-Static GPR Antennas for Near-Surface Object DetectionXianyang Gao0Frank J. W. Podd1Wouter van Verre2David J. Daniels3Anthony J. Peyton4School of Electrical and Electronic Engineering, The University of Manchester, Manchester M13 9PL, UKSchool of Electrical and Electronic Engineering, The University of Manchester, Manchester M13 9PL, UKSchool of Electrical and Electronic Engineering, The University of Manchester, Manchester M13 9PL, UKSchool of Electrical and Electronic Engineering, The University of Manchester, Manchester M13 9PL, UKSchool of Electrical and Electronic Engineering, The University of Manchester, Manchester M13 9PL, UKAntennas are an important component in ground penetrating radar (GPR) systems. Although there has been much research reported on the design of individual antennas, there is less research reported on the design of the geometry of bi-static antennas. This paper considers the effects of key parameters in the setup of a GPR head consisting of a bi-static bow-tie pair to show the effect of these parameters on the GPR performance. The parameters investigated are the antenna separation, antenna height above the soil, and antenna input impedance. The investigation of the parameters was performed by simulation and measurements. It was found when the bi-static antennas were separated by 7 cm to 9 cm and were operated close to the soil (2 cm to 4 cm), the reflected signal from a near-surface object is relatively unaffected by height variation and object depth. An antenna input impedance of 250 Ω was chosen to feed the antennas to reduce the late-time ringing. Using these results, a new GPR system was designed and then evaluated at a test site near Benkovac, Croatia.http://www.mdpi.com/1424-8220/19/1/170ground penetrating radarantennaoptimisationgeometrical configurationbowtiebi-static |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Xianyang Gao Frank J. W. Podd Wouter van Verre David J. Daniels Anthony J. Peyton |
spellingShingle |
Xianyang Gao Frank J. W. Podd Wouter van Verre David J. Daniels Anthony J. Peyton Investigating the Performance of Bi-Static GPR Antennas for Near-Surface Object Detection Sensors ground penetrating radar antenna optimisation geometrical configuration bowtie bi-static |
author_facet |
Xianyang Gao Frank J. W. Podd Wouter van Verre David J. Daniels Anthony J. Peyton |
author_sort |
Xianyang Gao |
title |
Investigating the Performance of Bi-Static GPR Antennas for Near-Surface Object Detection |
title_short |
Investigating the Performance of Bi-Static GPR Antennas for Near-Surface Object Detection |
title_full |
Investigating the Performance of Bi-Static GPR Antennas for Near-Surface Object Detection |
title_fullStr |
Investigating the Performance of Bi-Static GPR Antennas for Near-Surface Object Detection |
title_full_unstemmed |
Investigating the Performance of Bi-Static GPR Antennas for Near-Surface Object Detection |
title_sort |
investigating the performance of bi-static gpr antennas for near-surface object detection |
publisher |
MDPI AG |
series |
Sensors |
issn |
1424-8220 |
publishDate |
2019-01-01 |
description |
Antennas are an important component in ground penetrating radar (GPR) systems. Although there has been much research reported on the design of individual antennas, there is less research reported on the design of the geometry of bi-static antennas. This paper considers the effects of key parameters in the setup of a GPR head consisting of a bi-static bow-tie pair to show the effect of these parameters on the GPR performance. The parameters investigated are the antenna separation, antenna height above the soil, and antenna input impedance. The investigation of the parameters was performed by simulation and measurements. It was found when the bi-static antennas were separated by 7 cm to 9 cm and were operated close to the soil (2 cm to 4 cm), the reflected signal from a near-surface object is relatively unaffected by height variation and object depth. An antenna input impedance of 250 Ω was chosen to feed the antennas to reduce the late-time ringing. Using these results, a new GPR system was designed and then evaluated at a test site near Benkovac, Croatia. |
topic |
ground penetrating radar antenna optimisation geometrical configuration bowtie bi-static |
url |
http://www.mdpi.com/1424-8220/19/1/170 |
work_keys_str_mv |
AT xianyanggao investigatingtheperformanceofbistaticgprantennasfornearsurfaceobjectdetection AT frankjwpodd investigatingtheperformanceofbistaticgprantennasfornearsurfaceobjectdetection AT woutervanverre investigatingtheperformanceofbistaticgprantennasfornearsurfaceobjectdetection AT davidjdaniels investigatingtheperformanceofbistaticgprantennasfornearsurfaceobjectdetection AT anthonyjpeyton investigatingtheperformanceofbistaticgprantennasfornearsurfaceobjectdetection |
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