摘要
通过建立相关瑞利衰落信道最大比合并的仿真模型,从理论上研究瑞利衰落信道中分集支路相关时最大比合并的误码性能。通过对对流层散射通信的信道进行理论分析和相应的公式推导,建立了相关瑞利衰落信道最大比合并的数学模型;基于MATLAB通过数值仿真的方法,系统地分析不同条件下误码率与信噪比之间的关系,并对分集接收中最大比合并的误码率性能进行讨论。研究结果表明采用最大比合并的分集接收策略能有效地改善瑞利衰落对无线信道传输信号的影响。同时该分析方法对于研究实际的分集接收系统具有理论指导作用。
A simulation model of maximal ratio combining in correlated rayleigh fading channels was established, and bit-error performances of maximal ratio combining in correlated Rayleigh fading channels were investigated theoretically. A mathematic model of maximal ratio combining in correlated Rayleigh fading channels is introduced by theoretical analyzing troposphere scattering channels and the corresponding deducing formulas, The relations between bit-error rate and signal noise ratio in different conditions are...
出处
《舰船电子工程》
2008年第2期70-73,165,共5页
Ship Electronic Engineering
关键词
瑞利衰落
最大比合并
仿真模型
误码性能
rayleigh fading
maximal ratio combining
simulation model
bit-error performances
