大理州团山广播电视发射台无线数字化电视覆盖的应用与实施  

Application and implementation of wireless digital TV coverage of Tuanshan Radio and Television Launch Station in Dali State

作　　者：张晔 ZHANG Ye(Dali Radio and Television Station of Yunnan Province,Dali 671000,China)

机构地区：[1]云南省大理广播电视台

出　　处：《电视技术》2019年第13期60-63,共4页Video Engineering

摘　　要：随着人们生活水平的提高和社会信息化的发展,广播电视从节目制作到有线传输已基本实现了数字化,而无线传输仍处在模数过渡状态,不能完全满足特殊收视群体的需求,于是无线传输数模转换是当前必须完成的任务。本文结合中央无线数字化覆盖工程介绍了大理州团山广播电视发射台无线电视数字化覆盖系统的组成、关键技术。并结合本台的实际情况,以大理广播电视台一套为例,详细阐述了如何在中央无线数字化覆盖项目中插入本地节目源,为以后无线数字节目的普及打下基础。With the improvement of people’s living standards and the development of social informatization, radio and television have basically been digitized from program production to cable transmission, while wireless transmission is still in a state of analog-to-digital transition, which cannot fully meet the needs of special viewing groups. So wireless transmission digital-to-analog conversion is a task that must be completed at present. This paper introduces the composition and key technologies of the digital TV wireless coverage system of Tuanshan Radio and Television Broadcasting Station in Dali Prefecture, combined with the central wireless digital coverage project. Combined with the actual situation of this station, a set of Dali Radio and TV Station is taken as an example to explain in detail how to insert a local program source into the central wireless digital coverage project, laying a foundation for the popularization of wireless digital programs in the future.

关 键 词：地面数字电视 信号源 转码 复用 传送发射 

分 类 号：TN949[电子电信—信号与信息处理]