长沙地铁电视覆盖系统建设方案设计  

Design of Digital TV Coverage System in Changsha Metro

作　　者：董鑫 张钰 

机构地区：[1]长沙广电数字移动传媒有限公司,湖南长沙410005 [2]上海国茂数字技术有限公司,上海201203

出　　处：《电视技术》2015年第16期115-122,共8页Video Engineering

摘　　要：主要介绍了长沙地铁2号线地铁电视所采用的基于国标(DTMB)地面数字电视技术共缆传输覆盖系统的建设方案,实现在地铁车厢内移动接收地面数字电视信号,并通过长沙地铁2号线隧道内的覆盖实例,提出与商用通信信号共缆传输系统的设计方案与参数选择。The metro Line2 in Changsha have been built to service, and have built in metro digital TV system based on terrestrial transmit system. This topic introduces the building design of the signal transmit in shared cable adopted by the metro digital TV, which realizes the metro digital TV to receive the terrestrial signal. And the topic introduces the digital TV signal coverage system in the Changsha Metro Line2＇ s tunnel which is based on leakage cable, and proposes the design and technique parameters choice of the signal transmission in the shard cable with communication cable system.

关 键 词：地铁电视 DTMB 共缆传输 信号覆盖 

分 类 号：TN949[电子电信—信号与信息处理]