探析上行站同步信号源的自动切换及监控措施  

Analysis on the automatic switching and monitoring measures of the synchronous signal source of the uplink station

作　　者：李韫秋 Li Yunqiu(Henan Provincial Radio and Television Transmitting Station, Zhengzhou 450002, Chin)

机构地区：[1]河南省广播电视发射台,河南郑州450002

出　　处：《无线互联科技》2016年第24期1-2,共2页Wireless Internet Technology

摘　　要：在电视广播信号上星传输中,为保证传输系统的安全、稳定,需要在进入编码器前端应用码流切换器进入到上行系统,经卫星向各同步站提供同步信号源。如其出现问题将对整个同步系统运行造成直接影响。为此,必须重视和加强同步信号源的监控。文章基于电视广播信号传输情况,分析上行站同步信号源自动切换,并提出了针对性的监控措施。In the transmission process of television broadcast signal being sent to satellite, in order to ensure the safety and stability of transmission system, it is necessary to apply the video switcher onto the front-end of encoder to get into the uplink system, via satellite providing synchronous signal source to the synchronous station. If there are problems, it will directly affect the operation of synchronous system. Therefore, importance must be attached to and strengthen the monitoring of the synchronous signal source. Based on television broadcast signal transmission, this paper carried on the analysis of the upstream station synchronization signal source automatic switching, and put forward targeted monitoring measures.

关 键 词：电视广播卫星 上行站 同步信号源 自动切换 

分 类 号：TN943[电子电信—信号与信息处理]