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Journal of the Optical Society of America A

Journal of the Optical Society of America A

| OPTICS, IMAGE SCIENCE, AND VISION

  • Editor: Stephen A. Burns
  • Vol. 26, Iss. 6 — Jun. 1, 2009
  • pp: 1494–1502

Message-passing-interface-based parallel FDTD investigation on the EM scattering from a 1-D rough sea surface using uniaxial perfectly matched layer absorbing boundary

J. Li, L.-X. Guo, H. Zeng, and X.-B. Han  »View Author Affiliations


JOSA A, Vol. 26, Issue 6, pp. 1494-1502 (2009)
http://dx.doi.org/10.1364/JOSAA.26.001494


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Abstract

A message-passing-interface (MPI)-based parallel finite-difference time-domain (FDTD) algorithm for the electromagnetic scattering from a 1-D randomly rough sea surface is presented. The uniaxial perfectly matched layer (UPML) medium is adopted for truncation of FDTD lattices, in which the finite-difference equations can be used for the total computation domain by properly choosing the uniaxial parameters. This makes the parallel FDTD algorithm easier to implement. The parallel performance with different processors is illustrated for one sea surface realization, and the computation time of the parallel FDTD algorithm is dramatically reduced compared to a single-process implementation. Finally, some numerical results are shown, including the backscattering characteristics of sea surface for different polarization and the bistatic scattering from a sea surface with large incident angle and large wind speed.

© 2009 Optical Society of America

OCIS Codes
(290.5880) Scattering : Scattering, rough surfaces
(010.4458) Atmospheric and oceanic optics : Oceanic scattering

ToC Category:
Scattering

History
Original Manuscript: January 9, 2009
Revised Manuscript: April 26, 2009
Manuscript Accepted: April 27, 2009
Published: May 29, 2009

Citation
J. Li, L.-X. Guo, H. Zeng, and X.-B. Han, "Message-passing-interface-based parallel FDTD investigation on the EM scattering from a 1-D rough sea surface using uniaxial perfectly matched layer absorbing boundary," J. Opt. Soc. Am. A 26, 1494-1502 (2009)
http://www.opticsinfobase.org/josaa/abstract.cfm?URI=josaa-26-6-1494


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