国家地面数字电视传输标准单频网覆盖测试  

SFN Coverage Testing of China's DTTV Transmission Standard

作　　者：冯景锋 周兴伟 刘骏 

机构地区：[1]国家广电总局广播电视规划院

出　　处：《广播与电视技术》2008年第8期114-114,116,118,120,共4页Radio & TV Broadcast Engineering

摘　　要：本文重点介绍了符合GB20600-2006国家地面数字电视传输标准单频网性能测试方法和分析,并以2007年北京地区地面数字电视技术试验为例,详细说明了单频网重叠覆盖区的确定、单频网信号分析、单频网固定接收测试以及移动接收性能测试过程。Analysis of SFN signal is the first step of testing DTTV SFN coverage performance, and also the first step to adjust and optimize the network. Ensuring overlapped coverage areas of DTTV SFN is the chief task to test DTTV SFN coverage performance. Taking the Beijing DTTV technology test in 2007 as an example, the article details the process of SFN overlapped coverage area determination, SFN signals analysis and testing of SFN fixed receiving testing and mobile receiving performance.

关 键 词：单频网 重叠覆盖区 频率规划 信道冲激响应 载噪比门限 最小接收信号电平 信号裕量 成功接收概率 

分 类 号：TN949.197[电子电信—信号与信息处理] TN943[电子电信—信息与通信工程]