复杂地形下地面数字电视单频网重叠覆盖区接收性能优化研究  

Research on Receiving Performance Optimization of Overlapping Coverage Area in Terrestrial Digital Television Single Frequency Networks under Complex Terrain

作　　者：王健 WANG Jian(Jinan Radio and Television Station,Jinan 250014,China)

机构地区：[1]济南广播电视台,山东济南250014

出　　处：《电视技术》2024年第12期157-159,共3页Video Engineering

摘　　要：地面数字电视单频网重叠覆盖区接收性能是组网中的关键技术。在地形复杂的地区,如何掌握和应对可能影响地面数字电视单频网重叠覆盖区接收性能的因素,是单频网组网面临的现实性挑战。鉴于此,在介绍地面数字电视单频网重叠覆盖区接收性能的基础上,总结影响复杂地形条件下地面数字电视单频网重叠覆盖区接收性能的因素,包括地形地貌、发射机布设方式、信号传播路径和多径效应,进而提出确保接收性能的措施,为复杂地形下的单频网组网提供技术方案参考。The reception performance of the overlapping coverage area is the key technology in the single frequency terrestrial digital television network.In the area of complex terrain,how to master and deal with the factors that may affect the reception performance in the overlapped coverage area of the single frequency terrestrial digital television network is a practical challenge faced by the single frequency network.In view of this,on the basis of introducing the reception performance of the overlapping coverage area of the terrestrial digital television single frequency network,the factors affecting the reception performance of the overlapping coverage area of the terrestrial digital television single frequency network under complex terrain conditions are summarized,including topography,transmitter layout,signal propagation path and multipath effect,and then the measures to ensure the reception performance are proposed.It provides a reference for the technical scheme of single frequency network under complex terrain.

关 键 词：复杂地形 地面数字电视 单频网 重叠覆盖区 接收性能 

分 类 号：TN934.8[电子电信—信号与信息处理]