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隧道内数字电视信号覆盖方式比较分析
戴懿贺,夏秀靖,章丽君(上海东方明珠广播电视研发中心，上海 200120) 摘 要
为解决隧道内数字电视信号的覆盖问题，可以采用天线方式和泄漏电缆方式，文中对这两种方式进行了理论分析和实际测试比较，并介绍了两种方式各自的优缺点和适用场合。
关键词
The Comparison and Analyze of the Coverage Resolution of Digital Television in Tunnel
DAI Yi-he, XIA Xiu-jing, ZHANG Li-jun,DAI Yi-he, XIA Xiu-jing, ZHANG Li-jun,DAI Yi-he, XIA Xiu-jing, ZHANG Li-jun() Abstract
In order to solve the coverage problem of digital TV in tunnel, we can adopt the antenna or radiating cable. In this paper we made comparison between the two modes according to theoretical and practical test. We also introduced the advantage and disadvantage based on the two modes, and suitable application of each one.
Keywords
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