Three-dimensional Finite-difference Time-domain Modeling of Ground-penetrating Radar Survey for Detection of Underground Cavity
نویسندگان
چکیده
منابع مشابه
Computer Modeling and Simulation of Ground Penetrating Radar using Finite Difference Time Domain Code
Modeling and simulation results of a system analysis of Ground Penetrating Radars (GPR) using Finite Difference Time Domain (FDTD) techniques are presented. Performance issues with GPRs need to be isolated in order to optimize of the radar’s ability to detect and identify buried objects. Using a system engineering approach, FDTD models were used to characterize the variables associated with the...
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The finite-difference time-domain (FDTD) method is used to simulate three-dimensional (3-D) geometries of realistic ground-penetrating radar (GPR) scenarios. The radar unit is modeled with two transmitters and a receiver in order to cancel the direct signals emitted by the two transmitters at the receiver. The transmitting and receiving antennas are allowed to have arbitrary polarizations. Sing...
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A three-dimensional (3-D) time-domain numerical scheme for simulation of ground penetrating radar (GPR) on dispersive and inhomogeneous soils with conductive loss is described. The finite-difference time-domain (FDTD) method is used to discretize the partial differential equations for time stepping of the electromagnetic fields. The soil dispersion is modeled by multiterm Lorentz and/or Debye m...
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[1] Comparison of results from a three-dimensional (3-D) finite difference time domain (FDTD) model of Schumann resonances (SR) with a set of classical eigenfrequency and quality factor solutions for laterally uniform spherically symmetric Earth-ionosphere cavity and recent SR observations during solar proton events (SPEs) and X-ray bursts demonstrate the potential and applicability of the FDTD...
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A Haar-wavelet-based multi-resolution time domain (MRTD) model is applied for the analysis of a three-dimensional ground-penetrating radar (GPR) system. The MRTD analysis is reviewed, with a focus on its application to a resistively-tapered horn antenna system. Computed GPR scattered fields are compared to measured data, for a buried target, and the model is utilized to perform phenomenological...
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ژورنال
عنوان ژورنال: Geophysics and Geophysical Exploration
سال: 2016
ISSN: 1229-1064
DOI: 10.7582/gge.2016.19.1.020