阴影效应服从对数正态分布，而多径衰落服从瑞利分布。
The shadow affect is logarithmic normal distribution, and the multi-path fading is Rayleigh distribution.
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。
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 expression.
该方法把克罗内克积应用到频域，同时提出频域散射衰落加权因子的概念，由此导出一种室外宽带MIMO散射分布模型。
By introducing the Kronecker product into the frequency domain and employing the concept of scattering fading weight factor, an outdoor broadband MIMO scattering-distribution model is derived.
仿真实验结果表明，提出的分布式MIMO信道模型能够有效降低小尺度衰落相关性和阴影衰落相关性的影响。
The simulation result indicate that the proposed distributed MIMO channel model effectually reduce the impact of low fading correlation on the channel capacity.
针对复合衰落信道的复杂性，提出了一种简化的信道模型来研究分布式天线系统的误比特率性能。
Due to the complexity of the composite fading channel, a new simplified channel model is proposed to analyze the bit error ratio(BER)performance of the distributed antenna system(DAS).
高频电离层信道反射信号的幅度衰落服从瑞利分布。
Envelope fading of reflecting signals on HF ionospheric channels is Rayleigh fading.
高频电离层信道反射信号的幅度衰落服从瑞利分布。
Envelope fading of reflecting signals on HF ionospheric channels is Rayleigh fading.
应用推荐