| 卫星移动通信系统的频率同步技术 |
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| 引用本文： | 刘解华,刘凯,刘斌彬.卫星移动通信系统的频率同步技术[J].无线通信技术,2014(3):21-24. |
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| 作者姓名： | 刘解华 刘凯 刘斌彬 |
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| 作者单位： | 北京华力创通科技股份有限公司,北京100094 |
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| 基金项目： | 国家高技术研究发展计划（863计划）资助,课题编号“2012AA01A508”. |
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| 摘 要： | 卫星移动通信系统是利用卫星作为中继,实现区域乃至全球范围的移动通信的系统.在系统通信过程中,一个很重要的方面是无线链路的频率同步.本文首先介绍了卫星移动通信系统及其频率偏差的原因,接着讨论了地面终端所采用的频率同步技术,同时还讨论了特殊的机载终端所采用的频率同步技术,最后总结了卫星移动通信系统的频率同步机制.
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| 关 键 词： | 卫星移动通信 频率同步 多普勒频移 地面终端 机载终端 |
Frequency Synchronization Techniques for Satellite Mobile Communication System |
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| LIU Jie-hua,LIU Kai,LIU Bin-bin.Frequency Synchronization Techniques for Satellite Mobile Communication System[J].Wireless Communication Technology,2014(3):21-24. |
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| Authors: | LIU Jie-hua LIU Kai LIU Bin-bin |
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| Institution: | (Hwa Create Corporation Ltd. , Beijing 100094, China) |
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| Abstract: | In satellite mobile communication system, satellite is used as a relay to realize regional and global communications. In the procedure of communication, an important aspect is the frequency synchronization of radio link. In this paper, the satellite mobile communication system and its reasons of frequency shift are introduced first. Then the frequency synchronization techniques for terrestrial and aeronautical terminals are discussed. Finally the frequency synchronization schemes in satellite mobile communication system are summarized. |
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| Keywords: | satellite mobile communication frequency synchronization Doppler shift terrestrial terminals aeronautical terminals |
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