计算物理 ›› 2003, Vol. 20 ›› Issue (3): 259-263.

• 论文 • 上一篇    下一篇

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

梁子长, 金亚秋   

  1. 复旦大学波散射和遥感中心, 信息科学与工程学院, 上海 200433
  • 收稿日期:2002-03-08 修回日期:2002-10-14 出版日期:2003-05-25 发布日期:2003-05-25
  • 作者简介:梁子长(1978-),男,上海,研究生,从事微波遥感方面的研究.
  • 基金资助:
    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

Parameter Inversion from Iterative Solution of High-order Scattering of Vector Radiative Transfer for One Layer of Random Non-spherical Particles

LIANG Zi-chang, JIN Ya-qiu   

  1. Center for Wave Scattering and Remote Sensing, School of Information Science and Engineering, Fudan University, Shanghai 200433, China
  • Received:2002-03-08 Revised:2002-10-14 Online:2003-05-25 Published:2003-05-25

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.

关键词: VRT方程, Mueller矩阵, 非球形粒子, 迭代反演

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.

Key words: VRT equation, Mueller matrix, non-spherical particle, iterative inversion

中图分类号: