摘要
本文对地面数字电视单频网同频干扰问题进行了理论计算,分析了来自不同发射点的信号场强和时延对单频网同步区域的影响,并对北京地面数字电视单频网实际测试结果进行讨论,最后就北京地面数字电视单频网进一步优化提出了解决方案。
This paper conducts theoretical calculation on the same frequency interference of DTMB single frequency network, and analyzes the influence of signal intensity and time delay from different launching sites on the synchronous zone of single frequency network. Then it investigates the actual testing results of the DTMB single frequency network in Beijing. At last, it puts forward solutions to further optimize the DTMB single frequency network in Beijing.
出处
《广播与电视技术》
2015年第11期95-98,共4页
Radio & TV Broadcast Engineering
关键词
地面数字电视
单频网
场强
时延
同频干扰测试
DTMB,Single frequency network, Signal intensity, Time delay, Same frequency interference,Testing
