| 一层随机非球形粒子高阶散射矢量辐射传输迭代解的参数求逆 |
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| 引用本文： | 梁子长,金亚秋.一层随机非球形粒子高阶散射矢量辐射传输迭代解的参数求逆[J].计算物理,2003,20(3):259-263. |
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| 作者姓名： | 梁子长 金亚秋 |
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| 作者单位： | 复旦大学波散射和遥感中心, 信息科学与工程学院, 上海 200433 |
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| 基金项目： | 国家重点基础研究规划(2001CB309401)项目，国家自然科学基金(60171009)资助项目 |
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| 摘 要： | 根据一层随机非球形粒子矢量辐射传输(VRT)方程的一阶与高阶Mueller矩阵解的差异,提出了在已知一些参数的条件下,用水平与垂直同极化和交叉极化后向散射测量反演非球形粒子复介电常数和单位面积粒子数的迭代方法,并用极化后向散射强度的模拟测量数据及机载合成孔径雷达(Air SAR)实测数据进行了反演试验,并对反演值与各参数的关系以及测量噪声对反演的影响进行了讨论.
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| 关 键 词： | VRT方程 Mueller矩阵 非球形粒子 迭代反演 |
| 文章编号： | 1001-246X(2003)03-0259-05 |
| 收稿时间： | 2002-03-08 |
| 修稿时间： | 2002年3月8日 |
Parameter Inversion from Iterative Solution of High-order Scattering of Vector Radiative Transfer for One Layer of Random Non-spherical Particles |
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| LIANG Zi-chang,JIN Ya-qiu.Parameter Inversion from Iterative Solution of High-order Scattering of Vector Radiative Transfer for One Layer of Random Non-spherical Particles[J].Chinese Journal of Computational Physics,2003,20(3):259-263. |
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| Authors: | LIANG Zi-chang JIN Ya-qiu |
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| Institution: | Center for Wave Scattering and Remote Sensing, School of Information Science and Engineering, Fudan University, Shanghai 200433, China |
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| Abstract: | Employing the first-order Mueller matrix solution of vector radiative transfer equation for one layer of small random spheroids, simulated measurements of high-order co-polarized and cross-polarized backscattering are obtained. Iterative inversion of the dielectric constant of small spheroids and the number of particles per unit area is developed. The inversion from simulated and real AirSAR data and its dependencies upon the parameters and the random noise are discussed. |
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| Keywords: | VRT equation Mueller matrix non-spherical particle iterative inversion |
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