摘要
本文简单介绍在已建成CMMB单频网的基础上,为满足用户的实际需求,在覆盖信号较弱的区域通过数字电视同频转发器进行增补覆盖的方法,并对同频转发器的工作原理、覆盖效果以及优化手段等方面进行分析,通过实际道路测试数据完成对同频转发器覆盖效果的验证。
CMMB usually uses SFN coverage in cities.Due to limited number of base stations,high buildings and high population density,there are still some key coverage areas located in coverage signal penumbra or shadow areas.The paper introduces working principle,covering effects and optimization measures of using co-channel repeater to supplement CMMB SFN’s coverage.
出处
《广播与电视技术》
2013年第3期121-124,15,共4页
Radio & TV Broadcast Engineering
