基于非均匀角度扩展及来波方向的平坦衰落信道分析

摘要

In the contribution of nonisotropic scattering, we propose the use of the versatile Von_Mises angular distribution, which includes and/or closely approximates important distributions like uniform, impulse, cardioid, Gaussian, and wrapped Gaussian, for mod⁃eling the nonuniform AOAs at the mobile. Based on this distribution, the associated correlation function and power spectrum of the com⁃plex envelope at the mobile receiver are derived.%本文提出采用Von_Mises连续概率函数，可以近似逼近非均匀功率水平分布及非均匀AOA角度扩展的高斯描述函数，对Clarke模型做出修正。通过模型典型数据仿真，可得Clarke修正模型的计算数据准确率达到很高的水准。