影响自由空间光通信的几个重要因素及解决方法  

Some factors affecting free space optical communications and solutions

作　　者：余向东[1] 沈常宇[1] 王育红[1] 

机构地区：[1]中国计量学院光电子技术研究所,杭州310034

出　　处：《光通信技术》2006年第2期61-63,共3页Optical Communication Technology

基　　金：浙江省科技计划项目(2004C3110)资助。

摘　　要：介绍了大气衰减、大气闪烁以及因摇摆、晃动造成的光束偏离等诸因素对自由空间光通信(FSO)的影响以及相应的解决方法。在上述诸因素当中,大气闪烁影响较小,大气衰减的影响最为严重,采用开放的60GHz微波与FSO有机的结合可有效地解决大气衰减造成的影响。摇摆、晃动、漂移对FSO造成的影响也不容忽视,ATP技术的采用是一种不错的解决方法。In this paper, some factors affecting free space optical communication ,which is from atmosphere attenuation ,atmosphere scintillation and light beam deflection because of sway ,rock and float, and solutions are introduced. In these factors, the atmosphere scintillation influence is smaller and the atmosphere attenuation influence is the most serious. The mixed system consisted of 60GHz millimeter wave technology and FSO can reduce effect of atmosphere attenuation availably. Effect from sway ,rock and float can not be neglected, ATP technology is a kind of good solutions.

关 键 词：自由空间光通信 大气衰减 大气闪烁 ATP 

分 类 号：TN929.11[电子电信—通信与信息系统]