DTMB前端信号IP传输系统升级改造研究  

Research on Upgrading of DTMB Front-end Signal IP Transmission System

作　　者：吴星辰 陈钟祺 丁玉林 Wu Xingchen;Chen Zhongqi;Ding Yulin(Suzhou Broadcasting System,Jiangsu 215000,China)

机构地区：[1]苏州市广播电视总台,江苏215000

出　　处：《广播与电视技术》2023年第10期96-98,共3页Radio & TV Broadcast Engineering

摘　　要：地面数字电视前端系统从最初的ASI形式的传统结构到现在的全IP化架构,始终把“安全播出”作为第一保障条件。苏州东吴塔地面数字前端机房上塔至发射机机房仅有一条线路,且只配有一台交换机负责分发内容至各发射机,对于安全播出来说有很大的隐患。本文通过实例探讨DTMB前端系统信号传输安全保障方案。From the original traditional structure of ASI form to the current all-IP architecture,the terrestrial digital TV front-end system always takes“safe broadcasting”as the first guarantee condition.There is only one line from the ground digital front-end room of Suzhou Dongwu tower to the transmitter room,and only one switch is equipped to distribute the content to each transmitter,which is a great hidden danger for safe broadcasting.Through this example,this paper mainly discusses the signal transmission security scheme of DTMB front-end system.

关 键 词：DTMB IP传输 升级改造 

分 类 号：TN934.3[电子电信—信号与信息处理]