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一种双向链路频谱重叠共享频带的卫星通信系统 被引量：2

Satellite Communication System Based on Two-Way Links Spectrum Overlapping Shared Frequency Band
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摘要 提出一种基于C,Ku,Ka频段透明转发器的双向链路频谱重叠共享频带的TDM/FDMA星型网卫星通信系统方案,小站至中心站的反向链路采用FDMA接入方式,中心站至各个小站的前向链路采用TDM广播方式。理论和仿真分析结果表明:该系统的频带效率比常规TDM/FDMA系统提高了1倍,而链路的传输性能仍可以达到实用要求。 A scheme of transparent transponder based on TDM/FDMA satellite communication system with star-type topology is proposed,where the spectrum of the both links are overlapped to share the same frequency band.The multi-access mode in the forward link from the user terminals to the hub station is FDMA,while the multiplexing mode of the forward link from the hub station to the user terminals is TDM.The paper analyzes in depth on the characteristics of the system,including a lot results of performance testing simulation.It is proved that the system has a twice frequency band efficiency of the conventional TDM/FDMA system and the link performance still satisfies the requirement of practical applications.
作者 汪春霆 潘申富 易克初
机构地区 西安电子科技大学通信工程学院 中国电子科技集团
出处 《微波学报》 CSCD 北大核心 2011年第1期83-86,96,共5页 Journal of Microwaves
基金 国家"863"项目(2009AA7070206)
关键词 频谱重叠 成对载波多址 频谱效率 链路性能 spectrum overlapping PCMA spectrum efficiency link performance
分类号 TN927.2 [电子电信—通信与信息系统]
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参考文献6

  • 1万坚,许华,朱中梁.基于独立分量分析的成对载波多址分离新算法[J].通信学报,2006,27(8):41-44. 被引量：14
  • 2刘云,郭洁,叶芝慧,宋铁成,沈连丰.频谱重叠信号分离的循环平稳算法[J].东南大学学报（自然科学版）,2005,35(3):333-337. 被引量：14
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微波学报
2011年 第1期

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