摘要
在国民经济的发展进程中,民众对广电媒体的需求越来越高。因此,为了向民众提供更优质的服务,有关部门提出了中央广播电视节目无线数字化覆盖工程,通过该项目实现央视节目在全国范围内的覆盖。地面数字电视发射系统是该项目实施的基础保障,它不仅可以为电视节目的传播提供稳定的信号,保证节目内容不会失真,而且具有一定的抗干扰能力,不会受到外部因素的破坏。文章主要对中央广播电视节目无线数字化覆盖工程地面数字电视发射系统进行分析,为该发射系统的建设提供借鉴。
In the development of the national economy,the public demand for radio and television media is increasing. There-fore,in order to provide higher quality services to the public,the relevant departments proposed the wireless digital coverage projectfor central radio and television programs,so as to achieve nationwide coverage of CCTV programs through the project. Terrestrial dig-ital television transmission system is the basic guarantee of the implementation of the project,in that it not only provides a stablesignal for the transmission of television programs,so that the content of the program will not be distorted,but also has a certaina-bility of anti -jamming, instead of being damaged by external factors. This paper mainly analyzes the terrestrial digital televisiontransmission system of the wireless digital coverage project for central radio and television programs,and provides a reference for theconstruction of the transmission system.
出处
《科技创新与应用》
2018年第8期166-167,169,共3页
Technology Innovation and Application
关键词
中央广播电视节目
无线数字化覆盖工程
地面数字电视发射系统
central radio and television programs
wireless digital coverage engineering
terrestrial digital television transmissionsystem
作者简介
刀瑜（1972,03-）,男,傣族,云南景谷人,大专,工程师,主要从事广播电视工程设备安装维护工作.
