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      Transmitter-receiver-transmitter-configured ground-penetrating radars over randomly heterogeneous ground models

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      Author
      Gürel, Levent
      Oğuz, U.
      Date
      2002
      Source Title
      Radio Science
      Print ISSN
      0048-6604
      Publisher
      Wiley-Blackwell Publishing, Inc.
      Volume
      37
      Issue
      6
      Pages
      6-1 - 6-9
      Language
      English
      Type
      Article
      Item Usage Stats
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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.
      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
      Permalink
      http://hdl.handle.net/11693/24627
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      • Department of Electrical and Electronics Engineering 3524
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