自由空间光通信系统在不同雾浓度情况下的误码率性能  

Bit Error Rate Characteristics of Free Space Optical Communication Under Different Fog Density

作　　者：刘博 李鹏程 李津 何中翔 LIU Bo;LI Peng-cheng;LI Jin;HE Zhong-xiang(Science and Technology on ElectronicInformation Control Laboratory,Chengdu 610036,China)

机构地区：[1]电子信息控制重点实验室

出　　处：《电子信息对抗技术》2019年第6期44-47,共4页Electronic Information Warfare Technology

摘　　要：大气湍流和大气衰减是影响自由空间光通信系统性能的主要因素。针对点对点自由空间光通信系统,基于指数韦伯分布的大气信道衰落模型,使用高斯拉盖尔数值积分方法,推导了采用BPSK调制时平均误码率的闭合表达式,并详细分析了不同雾浓度导致的衰减情况下系统的误码率性能。为设计和实现点对点自由空间光通信系统提供一定的理论参考。Atmospheric turbulence and atmospheric fading are two major factors for influence free space optical communication performance.In the point-to-point free space optical communication system, the closed expression of average bit error rate with BPSK modulation is derived with Gauss Laguerre numerical integration method, which is based on exponentiated Weibull distribution atmospheric channel model. On the other hand, bit error rate characteristics based on different fog density are analyzed in detail. Some theoretical references for point-to-point free space optical communication design and implementation are provided.

关 键 词：自由空间光通信 大气湍流 雾浓度 平均误码率 

分 类 号：TN929.1[电子电信—通信与信息系统]