基于Simulink~的复合衰落信道仿真与分析  

Analysis and Simulation of Composite Fading Channels Based on Simulink~

作　　者：张嵩[1] 王晓东[1] 芮国胜[1] 卜智勇[1] 

机构地区：[1]海军航空工程学院,研究生管理大队,山东,烟台,264001 海军航空工程学院,研究生管理大队,山东,烟台,264001 海军航空工程学院,电子信息工程系,山东,烟台,264001 上海无线通信研究中心,上海,200050

出　　处：《海军航空工程学院学报》2007年第3期340-344,共5页Journal of Naval Aeronautical and Astronautical University

基　　金：863计划项目资助(2005AA123510)

摘　　要：基于Simulink(R)平台建立了Rayleigh-Lognormal、Ricean-Lognormal、Nakagami-Lognormal复合衰落信道的仿真模型,这些模型可用于进行单频组网的DRM系统的设计和性能分析.给出了各种复合衰落的概率密度函数、累积分布函数、平均电平交叉率、平均衰落时间的统一表达式.仿真结果验证了理论分析结果的正确性.The simulation models for composite fading channel, such as Rayleigh-Lognormal fading channel, Ricean-Lognormal fading channel and Nakagami-Lognormal fading channel, are presented based on Simulink. These models can be applied to design SFN-based DRM systems and to analyze the performance of the designed systems. The probability density function, cumulative distribution function, average level crossing rate and average fade duration of each composite fading channel are analyzed, and some uniform expressions are derived. Simulation results validate the correctness of these expressions.

关 键 词：数字调幅广播 单频网络 信道仿真 概率密度函数 平均电平交叉率 

分 类 号：TP929.5[自动化与计算机技术]