复合随机介质中波场的二阶矩

复合随机介质中波场的二阶矩 THE SECOND MOMENT OF WAVE FIELD IN COMPOSITE RANDOM MEDIUM 侯杰昌 Hou Jiechang Zhang Guifu 1 first-author 张贵付 1 武汉大学空间物理系 武汉大学空间物理系 Department of Space Physics,Wuhan University Department of Space Physics,Wuhan University 本文用散射理论建立和推导出复合随机介质中的一阶矩和二阶矩方程。采用等效格林函数表示介质的随机性对两次散射之间传播的作用。计算了有随区域对波场的散射强度的角分布。并给出在远场近似下,波场的 Stokes 矢量的微分散射矩阵。 The scattering theory in composite random medium has beer established in this paper.The equations satisfied by first moment and second momend of wave field have been derived.Effective Green Function is used to express the action of the random medium to the wave in the process of twice Seatte ring.The angle distribution of scattering intensity by limited region is caleu lated.The scattering matrix for Stokes Vector is given also. 复合随机介质 二阶矩 等效格林函数 散射矩阵 composite random medium second moment effective green function scattering matrix 1990-03-01 2021-04-01 3