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Polarimetric scattering from a two-dimensional improved sea fractal surface |
| Liu Wei (刘伟), Guo Li-Xin (郭立新), Wu Zhen-Sen (吴振森) |
| School of Science, Xidian University, Xi'an 710071, China |
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Abstract This paper studies the influence of wind parameters and fractal dimension from an improved two-dimensional sea fractal surface on the polarimetric scattering by using facet integration. A two-dimensional improved sea surface simulated is discretized into three matrices of sea surface facets including a height matrix and two slope matrices on orthogonal directions. Based on the Kirchhoff approximation, the polarimetric scattered field is derived in the Cartesian coordinate system by integration of three matrices mentioned above. Finally, the fully polarised radar cross section is numerically simulated and the dependence of the polarimetric scattering on the sea fractal surface, such as the wind speed, the wind direction, as well as the fractal dimension, is discussed in detail.
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Accepted manuscript online:
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PACS:
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92.10.Fj
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(Upper ocean and mixed layer processes)
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92.60.Gn
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(Winds and their effects)
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92.10.Kp
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(Sea-air energy exchange processes)
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41.20.Jb
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(Electromagnetic wave propagation; radiowave propagation)
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| Fund: Project supported by the National Natural Science Foundation of China (Grant No. 60971067) and the Specialized Research Fund for the Doctoral Program of Higher Education of China (Grant No. 20070701010). |
Cite this article:
Liu Wei (刘伟), Guo Li-Xin (郭立新), Wu Zhen-Sen (吴振森) Polarimetric scattering from a two-dimensional improved sea fractal surface 2010 Chin. Phys. B 19 074102
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