浅谈地面数字广播电视发送系统的设立  

Discussion on establishment of the terrestrial digital radio and television transmission systems

作　　者：左江红 黄志明 饶茂林 焦媛 

机构地区：[1]贵州省广播电影电视局761台,贵州贵阳550002

出　　处：《中国科技信息》2013年第11期118-118,122,共2页China Science and Technology Information

摘　　要：在原有模拟发射台站建立数字广播电视发送系统,应尽可能考虑使用原有的模拟电视发送系统设备和用户利用原有接收天线,尽量低的经济投入来开展地面数字广播电视。采用多工器完成RF功率合成、多频道放大器合成,可使地面数字广播电视使用现有的模拟广播电视发射天线。The original analog fire stations set up digital broadcasting and TV transmission system, as far as possible to consider using the original analog TV system equipment and to the user using the original receiving antenna, low economic investment as far as possible in order to develop digital terrestrial broadcasting and television. Using multiplexer, multichannel amplifier complete RF power, can make the terrestrial digital broadcast television using an existing analog broadcasting and television transmitting antenna.

关 键 词：数字广播电视发送系统 功率合成 多频道放大 发射天线 

分 类 号：TN949.197[电子电信—信号与信息处理]