广播电视发射台备用信源系统设计与应用  

Design and Application of Backup Source System in Broadcasting Transmitting Station

作　　者：刘丽梅 Liu Limei(Hebei Radio and Television Institute of Science and Technology,Hebei 050012,China)

机构地区：[1]河北省广播电视科学技术研究所,河北050012

出　　处：《广播与电视技术》2018年第10期110-112,共3页Radio & TV Broadcast Engineering

摘　　要：本文设计了河北省八三四发射台备用信源系统。首先,通过比较两种信源方案的优缺点,确定了备用信源采用大卡接收机从八三四原有有线电视信号中解调信号的方法 ;接着设计了八三四发射台备用信源系统,并根据实际需要配置了系统中各设备。最后,分析了八三四备用信源系统设计的优点。The design and application process of the backup source for 834 Transmitting Station is proposed in this paper.Firstly,determine the method of signal demodulation from the cable television signals in 834 Transmitting Station using a large card receiver,after a detailed comparison between two kinds of source schemes.Then,the backup source system is designed,and the corresponding equipment are configured according to the actual needs.Finally,the advantages and experiences of the backup source system are analyzed.

关 键 词：备用信源 大卡接收机 解码器 

分 类 号：TN948.53[电子电信—信号与信息处理]