3D PML-FDTD simulation of ground penetrating radar on dispersive earth media

F. L. Teixeira, Weng Cho Chew, M. Straka, M. L. Oristaglio, T. Wang

Research output: Contribution to conferencePaper

Abstract

A 3D finite-difference time-domain simulation of ground penetrating radar (GPR) is described. The soil material is characterized by inhomogeneities, conductive loss and strong dispersion. The dispersion is modelled by a N-th order Lorentz model and implemented by recursive convolution. The Perfectly Matched Layer (PML) is used as an absorbing boundary condition (ABC). This formulation facilitates the parallelization of the code. A code is written for a 32 processor system. Almost linear speedup is observed. Results include the radargrams of buried objects.

Original languageEnglish (US)
Pages945-947
Number of pages3
StatePublished - Jan 1 1997
EventProceedings of the 1997 IEEE International Geoscience and Remote Sensing Symposium, IGARSS'97. Part 1 (of 4) - Singapore, Singapore
Duration: Aug 3 1997Aug 8 1997

Other

OtherProceedings of the 1997 IEEE International Geoscience and Remote Sensing Symposium, IGARSS'97. Part 1 (of 4)
CitySingapore, Singapore
Period8/3/978/8/97

ASJC Scopus subject areas

  • Computer Science Applications
  • Earth and Planetary Sciences(all)

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    Teixeira, F. L., Chew, W. C., Straka, M., Oristaglio, M. L., & Wang, T. (1997). 3D PML-FDTD simulation of ground penetrating radar on dispersive earth media. 945-947. Paper presented at Proceedings of the 1997 IEEE International Geoscience and Remote Sensing Symposium, IGARSS'97. Part 1 (of 4), Singapore, Singapore, .