Polarimetric scattering from a two-dimensional improved sea fractal surface  

作　　者：刘伟 郭立新 吴振森 

机构地区：[1]School of Science,Xidian University

出　　处：《Chinese Physics B》2010年第7期221-229,共9页中国物理B（英文版）

基　　金：supported by the National Natural Science Foundation of China (Grant No. 60971067);the Specialized Research Fund for the Doctoral Program of Higher Education of China (Grant No. 20070701010)

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.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.

关 键 词：polarimetric scattering sea fractal surface wind speed wind direction 

分 类 号：TN011[电子电信—物理电子学]