摘要
根据DVB-T系统的特征,采用分区分块的方法建立了上海地区地形数据库,计算出东方明珠电视塔的发射天线方向图,给出了上海地区DVB-T网络的三维场强分布及网络覆盖情况,并对计算结果进行了分析,为上海地区DVB-T网络建设提供了可靠的参考依据。
In this paper the terrestrial database of Shanghai area is built up based on characteristics of the Terrestrial Dig-ital Video Broadcasting(DVB-T)by means of blocking partition.In this way the directional diagrams of Shanghai Oriental Pearl Tower are calculated so that3D field strength spatial distribution and the network coverage rate are acquired.The re-sults are finally analyzed,thus giving the reference to DVB-T network to be set up in the area of Shanghai.
出处
《电视技术》
北大核心
2003年第10期33-36,共4页
Video Engineering
