| Ka卫星通信系统中雨衰分析 |
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| 引用本文： | 周兆清. Ka卫星通信系统中雨衰分析[J]. 无线电通信技术, 2006, 32(5): 53-55 |
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| 作者姓名： | 周兆清 |
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| 作者单位： | 中国电子科技集团公司第54研究所,河北,石家庄,050081 |
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| 摘 要： | 简单介绍了雨衰的机理,并以我国原邮电部给出的雨衰模型为基础,根据我国10个主要城市的降雨数据和地理位置参数,计算出轨道位置在80°E的通信卫星在上行水平极化/下行垂直线极化的情况下,Ka波段(30/20GHz)的雨衰A0.01,并就雨衰对下行卫星链路G/T值恶化带来的影响进行了分析讨论,给出了相应的计算方法,最后总结了几种抗雨衰措施。
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| 关 键 词： | Ka频段 雨衰 抗雨衰 噪声温度 |
| 文章编号： | 1003-3114（2006）05-53-3 |
| 收稿时间： | 2006-03-02 |
| 修稿时间： | 2006-03-02 |
Study of rain attenuation of Ka-band satellite communication system |
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| ZHOU Zhao-qing. Study of rain attenuation of Ka-band satellite communication system[J]. Radio Communications Technology, 2006, 32(5): 53-55 |
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| Authors: | ZHOU Zhao-qing |
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| Abstract: | The mechanism of rain attenuation is introduced.Values of rain attenuations at the 10 typical stations in China are given for the satellite communication system(the satellite orbit position:80°E)in Ka-band under the condition of linear polarization.These results are calculated on basis of the ITU-R mode and can be used to design Ka-band satellite communication system reasonably.We further analyze rain attenuation's effect,and summarize several rain attenuation countermeasures. |
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| Keywords: | Ka-band rain attenuation rain attenuation countermeasure noise temperature |
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