探讨雨衰对卫星节目传输的影响  

The influence of Rain Attenuation on Satellite Program Transmission

作　　者：黄祖洪 HUANG Zu-hong(751 Stations of the State Administration of Radio and Television,Shaowu 354011,China)

机构地区：[1]国家广播电视总局七五一台,福建邵武354011

出　　处：《通信电源技术》2018年第9期279-281,共3页Telecom Power Technology

摘　　要：当前,广播电视传输大多通过卫星通信实现远距离传送,在传播过程中,电波信号需经过地球表面的大气层、电离层和对流层,导致电波信号受到大气层中离子、自由电子能量等各种介质因素的影响,且在对流层中,还会面临各种恶劣天气,电波信号传输效率与卫星节目传输质量大大下降。其中,电磁信号受降雨影响最为显著。因此,分析雨衰的形成,提出全面解决雨衰问题的有效措施,以提高卫星广播电视节目传输的质量。Most of radio and television transmission is transmitted by satellite communications.I n the process of transmission,the signal must pass through the atmosphere,ionosphere and troposphere on the surface of the earth.In this case,the signal will be affected by various media in atmosphere,such as ions,free electrons.Energy,and in the troposphere,will also face a variety of adverse weather,which makes radio signal transmission efficiency and satellite program transmission quality greatly reduced.Among them,the electromagnetic signal is most affected by the rainfall,and the influence is the greatest.This paper explores the formation of rain failure to find out an effective way to solve the problem of rain failure and improve the quality of satellite radio and television program transmission.

关 键 词：雨衰 卫星节目 上行站 

分 类 号：TN927.2[电子电信—通信与信息系统]