补点发射机在地面数字电视广播中的应用  

Application of Supplementary Point Transmitter in Terrestrial Digital Television Broadcasting

作　　者：杨勇 YANG Yong(Huludao Radio and Television Station,Huludao 125001,China)

机构地区：[1]葫芦岛广播电视台,辽宁葫芦岛125001

出　　处：《电视技术》2020年第8期14-15,20,共3页Video Engineering

摘　　要：近年来,地面数字电视无线网络的覆盖越来越广,但仍有信号肓区。其中,小功率补点发射机的应用是经济、实用的解决办法。因此,通过对补点发射机的选址、安装与调试,完善了地面数字电视信号的覆盖范围与质量,达到了对地面数字电视覆盖盲区的有效补点。In recent years,the coverage of terrestrial digital TV wireless network is more and more extensive,but there are still some signal areas,the application of low-power supplementary point transmitter is an economical and practical solution.Through the site selection,installation and debugging of the supplementary point transmitter,the coverage and quality of the terrestrial digital television signal are improved,to achieve the effective supplementary point for the blind area covered by digital TV on the ground.

关 键 词：补点发射机 回波抑制 隔离度 

分 类 号：TN949.197[电子电信—信号与信息处理]