Transmitter-receiver-transmitter-configured ground-penetrating radars over randomly heterogeneous ground models
Date
2002
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Source Title
Radio Science
Print ISSN
0048-6604
Electronic ISSN
Publisher
Wiley-Blackwell Publishing, Inc.
Volume
37
Issue
6
Pages
6-1 - 6-9
Language
English
Type
Journal Title
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Volume Title
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Abstract
Ground-penetrating radar (GPR) problems are simulated using the finite-difference time-domain (FDTD) method. The GPR model is configured with arbitrarily polarized three antennas, two of which are transmitting antennas fed 180° out of phase. The receiver is placed in the middle of two transmitters, where it receives no direct coupling from the transmitting antennas. The ground is modeled as a dielectric, lossy, and heterogeneous medium. The performances of the transmitter-receiver-transmitter-configured GPRs above the heterogeneous ground models are investigated. The computational domain is terminated by perfectly matched layer (PML) absorbing boundaries. The PML is adapted to match both air and ground regions of the computation space.
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Keywords
Finite-difference time-domain method, Ground-penetrating radar, Perfectly matched layer, Boundary conditions, Computer simulation, Dielectric materials, Direct coupled amplifiers, Electromagnetic wave polarization, Finite difference method, Natural resources exploration, Radar antennas, Receiving antennas, Remote sensing, Signal to noise ratio, Transceivers, Perfectly matched layers (PML), Ground penetrating radar systems