手机电视T-DMB在L波段的覆盖研究

孙耀; 戴懿贺

doi:10.11834/jig.2006011251

数字电视、手机电视、IPTV、多媒体通信与安全 | 浏览量 : 0 下载量: 174 CSCD: 0

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专辑

手机电视T-DMB在L波段的覆盖研究
The Coverage Research of Mobile Phone Television T-DMB in L Band
2006年11卷第11期页码：1501
纸质出版：2006
DOI： 10.11834/jig.2006011251
稿件说明：

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孙耀, 戴懿贺. 手机电视T-DMB在L波段的覆盖研究[J]. 中国图象图形学报, 2006,11(11):1501. DOI： 10.11834/jig.2006011251.

The Coverage Research of Mobile Phone Television T-DMB in L Band[J]. Journal of Image and Graphics, 2006, 11(11): 1501. DOI： 10.11834/jig.2006011251.

摘要

为了在上海开展手机电视业务，选用L波段在上海市区进行T-DMB标准的覆盖试验。在无线信号覆盖上海市区的单频网建设初步完成后，又对相应的覆盖情况进行了路况测试，并且使用CCIR模型对覆盖场强进行了估算，并与实测值进行了对比，对比结果表明，在建筑物密集的城市，用CCIR模型预测L波段覆盖特性是有效的。理论研究和实践确认，两个发射点可以完成上海市区80％的室外覆盖，通过CCIR模型对上海特大型城市的L波段的覆盖进行预测，其对今后L波段覆盖网络的优化有重要参考价值。

Abstract

In order to develop the application of mobile phone TV in Shanghai

we adopt L-band for T-DMB trial in Shanghai. Having set up the SFN transmitting platform for the wireless signal coverage of urban area of Shanghai

we made a measurement about coverage on road

adopted the CCIR model for the coverage estimate to compared the measured field strength

and proved the reliability of the CCIR model for the coverage planning prediction in high-dense-building city in L-band. According to the theoretical research and practical proof

two transmitting sites can achieve 80% coverage in Shanghai urban area

and CCIR is reliable for the prediction of coverage in super-large city as Shanghai which will be instructional for the coverage optimization in the future.