一种改进的Jakes'信道模型及仿真  

An Improved Jakes' Channel Model and Simulations

作　　者：张剑东[1] 袁国才[1] 

机构地区：[1]中国船舶重工集团公司第七二二研究所,武汉430079

出　　处：《舰船电子工程》2012年第6期80-82,共3页Ship Electronic Engineering

摘　　要：由于无线通信环境中存在的诸多不确定因素以及其在现代无线通信系统中的重要作用,合理的无线信道成为通信系统仿真研究的重要目的。确立信道仿真模型的目的就是为了尽可能的得到实际信道的统计特性,该文针对Jakes提出的信道模型,通过仿真来分析其局限性,并参考其中的谐波叠加(sum of sinusoids,SOS)法,来建立一种采用了随机分支增益、随机初始相位和有条件的随机多普勒频率改进的信道模型。Because of huge numbers of the indeteminate elements in the mobile communication environment and the importance of the reasonable mobile channel model in the mobile communication system, it is almost the total purpose of the research of the communication system simulations. The reason we establish a channel simulation model is to approach the statistical parameters o the reality channels. It is analyzing the incomings of the Jakes＇ simulation model by simulating in Matlab. Then referring the commonly sum of sinusoids（SOS）method to present an improved channel simulation model, in which, we employed conditional random path gain, random initial phase.

关 键 词：Jakes信道模型 相关函数 二阶统计特性 衰落幅度概率密度 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术]