摘要
在对流层散射的电场强度快衰落和慢衰落的基础上,研究快衰落瑞利分布和慢衰落对数正态分布的组合,得到组合分布的概率密度函数、分布函数和均值,仿真不同参数取值下的概率密度函数和分布函数曲线,分析组合分布中参数变化对概率密度函数和分布函数影响的规律。基于对流层散射快慢衰落电场强度组合分布规律,为对流层散射传播系统的设计提供参考价值。
Based on the fast fading and slow fading of the electric field scattered by the troposphere, the combination of fast fading Rayleigh distribution and slow fading lognormal distribution is studied. The probability density function, distribution function and mean value of the combination distribution are obtained. The probability density function and distribution function curve under different parameter values are simulated, and the influence of the parameter variation on the probability density function and distribution function in the combination distribution is analyzed. Based on these laws of the combination of fast and slow fading field strength distribution in the troposphere, it can provide certain reference value for the design of tropospheric scatter propagation system.
作者
田国君
杜晓燕
于大鹏
卫佩佩
TIAN Guojun;DU Xiaoyan;YU Dapeng;WEI Peipei(Information Engineering University.Zhengzhou 450001.China)
出处
《信息工程大学学报》
2018年第5期513-516,共4页
Journal of Information Engineering University
基金
科研基金资助项目(9140C860303)
关键词
对流层散射
电场强度
快衰落
慢衰落
瑞利分布
对数正态分布
troposcatter
electric field strength
fast fading
slow fading
Rayleigh distribution
lognormal distribution
