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Article: Finite-difference time-domain simulation of ground penetrating radar on dispersive, inhomogeneous, and conductive soils

TitleFinite-difference time-domain simulation of ground penetrating radar on dispersive, inhomogeneous, and conductive soils
Authors
KeywordsAbsorbing Boundary Conditions
Dispersive Media
Electromagnetic Underground Propagation
Finite-Difference Time-Domain (Fdtd) Methods
Issue Date1998
Citation
Ieee Transactions On Geoscience And Remote Sensing, 1998, v. 36 n. 6, p. 1928-1937 How to Cite?
AbstractA 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 models and incorporated into the FDTD scheme by using the piecewise-linear recursive convolution (PLRC) technique. The dispersive soil parameters are obtained by fitting the model to reported experimental data. The perfectly matched layer (PML) is extended to match dispersive media and used as an absorbing boundary condition to simulate an open space. Examples are given to verify the numerical solution and demonstrate its applications. The 3-D PML-PLRC-FDTD formulation facilitates the parallelization of the code. A version of the code is written for a 32-processor system, and an almost linear speedup is observed. © 1998 IEEE.
Persistent Identifierhttp://hdl.handle.net/10722/182604
ISSN
2015 Impact Factor: 3.36
2015 SCImago Journal Rankings: 1.975
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorTeixeira, FLen_US
dc.contributor.authorChew, WCen_US
dc.contributor.authorStraka, Men_US
dc.contributor.authorOristaglio, MLen_US
dc.contributor.authorWang, Ten_US
dc.date.accessioned2013-05-02T05:16:04Z-
dc.date.available2013-05-02T05:16:04Z-
dc.date.issued1998en_US
dc.identifier.citationIeee Transactions On Geoscience And Remote Sensing, 1998, v. 36 n. 6, p. 1928-1937en_US
dc.identifier.issn0196-2892en_US
dc.identifier.urihttp://hdl.handle.net/10722/182604-
dc.description.abstractA 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 models and incorporated into the FDTD scheme by using the piecewise-linear recursive convolution (PLRC) technique. The dispersive soil parameters are obtained by fitting the model to reported experimental data. The perfectly matched layer (PML) is extended to match dispersive media and used as an absorbing boundary condition to simulate an open space. Examples are given to verify the numerical solution and demonstrate its applications. The 3-D PML-PLRC-FDTD formulation facilitates the parallelization of the code. A version of the code is written for a 32-processor system, and an almost linear speedup is observed. © 1998 IEEE.en_US
dc.languageengen_US
dc.relation.ispartofIEEE Transactions on Geoscience and Remote Sensingen_US
dc.subjectAbsorbing Boundary Conditionsen_US
dc.subjectDispersive Mediaen_US
dc.subjectElectromagnetic Underground Propagationen_US
dc.subjectFinite-Difference Time-Domain (Fdtd) Methodsen_US
dc.titleFinite-difference time-domain simulation of ground penetrating radar on dispersive, inhomogeneous, and conductive soilsen_US
dc.typeArticleen_US
dc.identifier.emailChew, WC: wcchew@hku.hken_US
dc.identifier.authorityChew, WC=rp00656en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.doi10.1109/36.729364en_US
dc.identifier.scopuseid_2-s2.0-0032208829en_US
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-0032208829&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume36en_US
dc.identifier.issue6en_US
dc.identifier.spage1928en_US
dc.identifier.epage1937en_US
dc.identifier.isiWOS:000077048600010-
dc.publisher.placeUnited Statesen_US
dc.identifier.scopusauthoridTeixeira, FL=7102746700en_US
dc.identifier.scopusauthoridChew, WC=36014436300en_US
dc.identifier.scopusauthoridStraka, M=7004567219en_US
dc.identifier.scopusauthoridOristaglio, ML=7003557579en_US
dc.identifier.scopusauthoridWang, T=7405561825en_US

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