A hybrid dual-polarization GPR system for detection of linear objects

Hai Liu; Jianguo Zhao; Motoyuki Sato

doi:10.1109/LAWP.2014.2363826

A hybrid dual-polarization GPR system for detection of linear objects

Hai Liu, Jianguo Zhao, Motoyuki Sato

Department of Basic Studies

Research output: Contribution to journal › Article › peer-review

19 Citations (Scopus)

Abstract

To circumvent the polarization sensitivity of ground penetrating radar (GPR) in detecting a linear object, we propose a simple hybrid dual-polarization GPR system consisting of a circularly polarized spiral antenna for transmit and two orthogonally oriented Vivaldi antennas for receiving two linear polarizations. The hybrid combination of a spiral antenna with two Vivaldi antennas is demonstrated to operate in an ultrawideband, to have small antenna dispersion, and to possess favorable antenna isolation. The improved performance of the proposed GPR system over a conventional single-polarized one in detecting linear subsurface objects is indicated by a laboratory experiment in a sandpit. Moreover, the proposed system enables fully coherent dual-polarization measurements with a single transmitter.

Original language	English
Article number	6930712
Pages (from-to)	317-320
Number of pages	4
Journal	IEEE Antennas and Wireless Propagation Letters
Volume	14
DOIs	https://doi.org/10.1109/LAWP.2014.2363826
Publication status	Published - 2015

Keywords

Antenna dispersion
antenna isolation
ground penetrating radar (GPR)
hybrid dual-polarization
linear object detection
ultrawideband (UWB)

ASJC Scopus subject areas

Electrical and Electronic Engineering

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abstract = "To circumvent the polarization sensitivity of ground penetrating radar (GPR) in detecting a linear object, we propose a simple hybrid dual-polarization GPR system consisting of a circularly polarized spiral antenna for transmit and two orthogonally oriented Vivaldi antennas for receiving two linear polarizations. The hybrid combination of a spiral antenna with two Vivaldi antennas is demonstrated to operate in an ultrawideband, to have small antenna dispersion, and to possess favorable antenna isolation. The improved performance of the proposed GPR system over a conventional single-polarized one in detecting linear subsurface objects is indicated by a laboratory experiment in a sandpit. Moreover, the proposed system enables fully coherent dual-polarization measurements with a single transmitter.",

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AU - Liu, Hai

AU - Zhao, Jianguo

AU - Sato, Motoyuki

PY - 2015

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AB - To circumvent the polarization sensitivity of ground penetrating radar (GPR) in detecting a linear object, we propose a simple hybrid dual-polarization GPR system consisting of a circularly polarized spiral antenna for transmit and two orthogonally oriented Vivaldi antennas for receiving two linear polarizations. The hybrid combination of a spiral antenna with two Vivaldi antennas is demonstrated to operate in an ultrawideband, to have small antenna dispersion, and to possess favorable antenna isolation. The improved performance of the proposed GPR system over a conventional single-polarized one in detecting linear subsurface objects is indicated by a laboratory experiment in a sandpit. Moreover, the proposed system enables fully coherent dual-polarization measurements with a single transmitter.

KW - Antenna dispersion

KW - antenna isolation

KW - ground penetrating radar (GPR)

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KW - linear object detection

KW - ultrawideband (UWB)

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