摘要
中央广播电视节目无线数字化覆盖工程实施后,实现除CCTV-3、5、6、8外的中央12套电视节目和省地方3套节目的无线数字化覆盖。本文介绍了DTMB节传系统设计方案,分析了实际使用过程中出现问题的原因。最后通过改造实践,比较好的解决了节传系统在信号源质量、可靠性等方面问题,提高了系统安全播出保障能力。
After the implementation of wireless digital coverage project of central radio and television programs, wireless digital coverage of 12 central TV programs and 3 provincial and local programs except for CCTV-3, 5, 6 and 8 will be realized. This paper introduces design scheme of DTMB transmission system, and analyzes problems causes in practical application. Finally, through transformation practice, it solves the problems of quality and reliability in transmission system of signal source and improves system ability of safe broadcast.
作者
杨志平
Yang Zhiping(Xingguo Microwave Station of Jiangxi Province,Jiangxi 342400,China)
出处
《广播与电视技术》
2021年第5期96-99,共4页
Radio & TV Broadcast Engineering
关键词
DTMB
节传系统
改造实践
DTMB
Program Transmission System
Transformation practice
