MMDS在海岛地区有线电视联网中的应用和实践  

Application of MMDS in Insular Zone CATV Network

作　　者：钱刚 

机构地区：[1]舟山市普陀区广播电视台,浙江舟山316100

出　　处：《中国有线电视》2003年第6期33-39,共7页China Digital Cable TV

摘　　要：介绍 2 .5GHzMMDS微波传输系统在地理环境和气候条件特殊的海岛地区有线电视联网的应用 ;探讨了大气衰落和雨、雾以及海上镜面反射对微波传输的影响。This paper presents application of MMDS(2.5GHz) microwave transmission system in CATV Network in zone district where the geographic environment and climate are special, and approaches how to affect microwave transmission by atmospheric collapse, rain, fog and mirror reflection on the sea-level. It also accounts for how to select antenna and feed line system, and proceedings in the concrete execution.

关 键 词：MMDS 海岛地区 有线电视 菲涅耳区 传播余隙 自由空间传输损耗 微波传输 

分 类 号：TN943.2[电子电信—信号与信息处理]