| 移动电视发射天线改造的规划与实践 |
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| 引用本文： | 陆建华,贺继成,张殷希,陈宏,马长松.移动电视发射天线改造的规划与实践[J].广播与电视技术,2012,39(8):114-114,116,117. |
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| 作者姓名： | 陆建华 贺继成 张殷希 陈宏 马长松 |
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| 作者单位： | 1. 无锡广播电视集团
2. 北京中天鸿大科技有限公司 |
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| 摘 要： | 本文介绍无锡移动电视发射天线由水平极化改造为垂直极化方式的规划实施过程,根据移动电视覆盖特点进行天线下倾角计算以及覆盖场型优化设计。由实际测试结果验证改造规划的可行性,为其他城市的地面数字电视覆盖规划提供参考。
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| 关 键 词： | 移动电视 发射天线 垂直极化 下倾角 |
Planning and Practice of Mobile Television Transmitting Antenna Transformation |
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| Abstract: | In order to meet development of business and increase transmission bandwidth, Wuxi Mobile Television changes modulation mode from QPSK to 16QAM. However, this will rise receiving threshold value and reduce coverage range. In order to have good coverage after change of modulation mode, the transmitting antenna must be altered to take vertical polarization. This paper describes the transformation process from horizontal polarization to vertical polarization of Wuxi Mobile Television’s transmitting antenna. It will be reference for DTTV coverage planning in other cities. |
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