Polarimetric scattering from a two-dimensional improved sea fractal surface

doi:10.1088/1674-1056/19/7/074102

中国物理B ›› 2010, Vol. 19 ›› Issue (7): 74102-074102.doi: 10.1088/1674-1056/19/7/074102

Polarimetric scattering from a two-dimensional improved sea fractal surface

刘伟, 郭立新, 吴振森

School of Science, Xidian University, Xi'an 710071, China

出版日期:2010-07-15 发布日期:2010-07-15
基金资助:
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).

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

Online:2010-07-15 Published:2010-07-15
Supported by:
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).

摘要/Abstract

摘要： 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.

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.

Key words: polarimetric scattering, sea fractal surface, wind speed, wind direction

中图分类号: (Upper ocean and mixed layer processes)

92.10.Fj

92.60.Gn (Winds and their effects) 92.10.Kp (Sea-air energy exchange processes) 41.20.Jb (Electromagnetic wave propagation; radiowave propagation)

刘伟, 郭立新, 吴振森. Polarimetric scattering from a two-dimensional improved sea fractal surface[J]. 中国物理B, 2010, 19(7): 74102-074102.

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[J]. Chin. Phys. B, 2010, 19(7): 74102-074102.

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Polarimetric scattering from a two-dimensional improved sea fractal surface

Polarimetric scattering from a two-dimensional improved sea fractal surface

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