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dc.contributor.authorGürel, Leventen_US
dc.contributor.authorOğuz, U.en_US
dc.date.accessioned2016-02-08T10:35:22Z
dc.date.available2016-02-08T10:35:22Z
dc.date.issued2001en_US
dc.identifier.issn0196-2892
dc.identifier.urihttp://hdl.handle.net/11693/24857
dc.description.abstractThe versatility of the three-dimensional (3-D) finite-difference time-domain (FDTD) method to model arbitrarily inhomogeneous geometries is exploited to simulate realistic groundpenetrating radar (GPR) scenarios for the purpose of assisting the subsequent designs of high-performance GPR hardware and software. The buried targets are modeled by conducting and dielectric prisms and disks. The ground model is implemented as lossy with surface roughness, and containing numerous inhomogeneities of arbitrary permittivities, conductivities, sizes, and locations. The impact of such an inhomogeneous ground model on the GPR signal is demonstrated. A simple detection algorithm is introduced and used to process these GPR signals. In addition to the transmitting and receiving antennas, the GPR unit is modeled with conducting and absorbing shield walls, which are employed to reduce the direct coupling to the receiver. Perfectly matched layer absorbing boundary condition is used for both simulating the physical absorbers inside the FDTD computational domain and terminating the lossy and layered background medium at the borders.en_US
dc.language.isoEnglishen_US
dc.source.titleIEEE Transactions on Geoscience and Remote Sensingen_US
dc.relation.isversionofhttp://dx.doi.org/10.1109/36.927440en_US
dc.subjectFinite-difference time-domain (FDTD)en_US
dc.subjectGround-penetrating radar (GPR)en_US
dc.subjectSubsurface scatteringen_US
dc.subjectHeterogeneous groundsen_US
dc.subjectShield wallsen_US
dc.subjectAlgorithmsen_US
dc.subjectComputer hardwareen_US
dc.subjectComputer simulationen_US
dc.subjectComputer softwareen_US
dc.subjectDielectric materialsen_US
dc.subjectElectric conductivityen_US
dc.subjectFinite difference methoden_US
dc.subjectPermittivityen_US
dc.subjectRadar target recognitionen_US
dc.subjectReceiving antennasen_US
dc.subjectSurface roughnessen_US
dc.subjectTime domain analysisen_US
dc.subjectTransceiversen_US
dc.subjectGround penetrating radar systemsen_US
dc.titleSimulations of ground-penetrating radars over lossy and heterogeneous groundsen_US
dc.typeArticleen_US
dc.departmentDepartment of Electrical and Electronics Engineeringen_US
dc.citation.spage1190en_US
dc.citation.epage1197en_US
dc.citation.volumeNumber39en_US
dc.citation.issueNumber6en_US
dc.identifier.doi10.1109/36.927440en_US
dc.publisherIEEEen_US
dc.contributor.bilkentauthorGürel, Levent


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