随机非球形粒子全极化散射的时间相关Mueller矩阵解  

The temporal Mueller matrix solution for polarimetric scattering from a layer of random non-spherical scatterers

作　　者：常梅[1] 金亚秋[1] 

机构地区：[1]复旦大学波散射与遥感中心,上海200433

出　　处：《物理学报》2002年第1期74-83,共10页Acta Physica Sinica

基　　金：国家自然科学基金 (批准号 :498310 60 ;60 1710 0 9);国家重点基础研究发展规划项目资助的课题~~

摘　　要：从与时间相关的矢量辐射传输方程推导一阶Mueller矩阵解 ,用来模拟Gauss型平面脉冲波入射下 ,一层随机、非均匀取向非球形粒子的全极化双站散射 .数值计算了同极化和去极化脉冲响应 ,与入射脉冲进行了比较 ,说明了随机介质的物理参数 ,如粒子的取向和占空比、入射角。The Mueller matrix solution of the vector radiative transfer equation with time dependence is derived in this paper.It is applied to the simulation of polarimetric bistatic scattering from a layer of random non\|spherical scatterers nonuniformly oriented when a Gaussian plane pulse is incident upon it.Co\|polarized and crosspolarized bistatic scattering are numerically calculated.The pulse echoes are compared with the incident pulse.We demonstrate the functional dependence of the pulse on the physical parameters of a random medium,such as spatial orientation and fractional volume of scatterers,incidence angle and polarization,the layer depth etc.

关 键 词：平面脉冲波 非球形粒子 MUELLER矩阵 全极化散射 合成孔径雷达 时间相关 VRT方程 脉冲波 

分 类 号：O442[理学—电磁学]