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研究了电磁波瞬态极化的统计表征问题. 首先分析了瞬态极化电磁波Stokes矢量表征的物理内涵, 为求解瞬时Stokes矢量的统计分布提供了简捷的途径. 在此基础上, 分析了电磁波瞬态极化在Gauss分布假设条件下的统计特性, 给出了瞬时Stokes参数的概率密度函数及其联合概率密度函数的解析表达式. 最后, 对瞬态极化电磁波在极化基分量之间相互独立的情况下进行了计算机仿真, 验证了该表征方法的有效性和简捷性.
We study the statistical characterization of transient polarization of electromagnetic wave.First, we analyze the physical connotation of Stokes vector representation of transient polarized electromagnetic wave, which provides a simple and convenient way to solve the statistical distribution of instantaneous Stokes vector.On the basis of this, State polarization under the assumption of Gauss distribution under the conditions of the statistical properties of the instantaneous Stokes parameters are given and the probability density function of the joint probability density function of the analytical expression.Finally, the transient polarization electromagnetic wave polarization components in the mutual Independent computer simulations were carried out to verify the validity and simplicity of this characterization method.