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Analysis of multiple scattering from two-dimensional dielectric sea surface with iterative Kirchhoff approximation |
Luo Wei(罗伟)a), Zhang Min(张民)a)†, Zhou Ping(周平)b), and Yin Hong-Cheng(殷红成)b) |
a School of Science, Xidian University, Xi'an 710071, China; b National Electromagnetic Scattering Laboratory, Beijing 100854, China |
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Abstract An iterative method in the Kirchhoff approximation is proposed for high frequency multiple electromagnetic scattering from two-dimensional dielectric sea surface. The multiple interaction of the scattering field is characterized with the corrected electromagnetic currents of the wind-driven sea surface. The actual surface currents are approximated with the iterative solution of the corrected currents. A newly developed sea spectrum, Elfouhaily spectrum, is utilized to build the sea surface model. The shadowing correction is improved by the Depth–Buffer algorithm. The validity of the iterative Kirchhoff approximation is verified by the agreement of backscattering coefficients with the measured data.
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Received: 03 December 2009
Revised: 29 January 2010
Accepted manuscript online:
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PACS:
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93.85.-q
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(Instruments and techniques for geophysical research: Exploration geophysics)
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91.50.Iv
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(Marine magnetics and electromagnetics)
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92.60.Gn
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(Winds and their effects)
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Fund: Project supported by the National Natural Science Foundation of China (Grant No. 60871070) and the National Pre-research Foundation and the Foundation of National Electromagnetic Scattering Laboratory, China. |
Cite this article:
Luo Wei(罗伟), Zhang Min(张民), Zhou Ping(周平), and Yin Hong-Cheng(殷红成) Analysis of multiple scattering from two-dimensional dielectric sea surface with iterative Kirchhoff approximation 2010 Chin. Phys. B 19 084102
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