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北斗导航星座星间通信速率控制方法

李献斌 王建 范广腾 杨志玺

李献斌, 王建, 范广腾, 等 . 北斗导航星座星间通信速率控制方法[J]. 北京航空航天大学学报, 2020, 46(4): 731-738. doi: 10.13700/j.bh.1001-5965.2019.0411
引用本文: 李献斌, 王建, 范广腾, 等 . 北斗导航星座星间通信速率控制方法[J]. 北京航空航天大学学报, 2020, 46(4): 731-738. doi: 10.13700/j.bh.1001-5965.2019.0411
LI Xianbin, WANG Jian, FAN Guangteng, et al. Inter-satellite communication rate control method of Beidou navigation constellation[J]. Journal of Beijing University of Aeronautics and Astronautics, 2020, 46(4): 731-738. doi: 10.13700/j.bh.1001-5965.2019.0411(in Chinese)
Citation: LI Xianbin, WANG Jian, FAN Guangteng, et al. Inter-satellite communication rate control method of Beidou navigation constellation[J]. Journal of Beijing University of Aeronautics and Astronautics, 2020, 46(4): 731-738. doi: 10.13700/j.bh.1001-5965.2019.0411(in Chinese)

北斗导航星座星间通信速率控制方法

doi: 10.13700/j.bh.1001-5965.2019.0411
基金项目: 

国家自然科学基金 61801503

详细信息
    作者简介:

    李献斌, 男, 博士, 助理研究员。主要研究方向:星间测距与星间通信

    王建, 男, 博士, 助理研究员。主要研究方向:软件无线电和数字信号处理

    范广腾, 男, 博士, 助理研究员。主要研究方向:卫星导航与定位

    杨志玺, 男, 博士, 助理研究员。主要研究方向:空间仪器

    通讯作者:

    王建, E-mail: wangjian710108@126.com

  • 中图分类号: V448.224

Inter-satellite communication rate control method of Beidou navigation constellation

Funds: 

National Natural Science Foundation of China 61801503

More Information
  • 摘要:

    北斗导航星座可以通过星间测距和传输链路实现自主定轨和性能增强。导航卫星间进行数据传输时,卫星相对位置时变,传输信道特性也随之不断发生变化。针对导航卫星间传输链路时变特性,提出了一种基于星历的星间通信速率控制方法。在满足传输服务质量的需求下,根据导航卫星自有的高精度星历资源定量计算星间最优通信速率,通过速率的动态调整提高星座的传输效能。仿真结果表明,采用所提方法,北斗导航星座星间传输效能可以提高1.92倍,验证了方法的有效性。

     

  • 图 1  星间测距通信一体化信号结构

    Figure 1.  Integrated signal structure of inter-satellite ranging communication

    图 2  基于星历的星间通信速率控制方法

    Figure 2.  Inter-satellite communication rate control method based on ephemeris

    图 3  星间通信数据帧结构

    Figure 3.  Frame structure of inter-satellite communication data

    图 4  北斗导航星座MEO星座构型

    Figure 4.  MEO constellation configuration of Beidou navigation constellation

    图 5  第一轨道面卫星间通信速率

    Figure 5.  Inter-satellite communication rate in the first orbit plane

    图 6  M11卫星与第二轨道面星间距离

    Figure 6.  Distances between M11 and satellites in the second orbit plane

    图 7  M11卫星与第二轨道面卫星间通信速率

    Figure 7.  Inter-satellite communication rate of M11 and satellites in the second orbit plane

    图 8  离散化的M11卫星与M25卫星通信速率

    Figure 8.  Discretized communication rate between M11 and M25

    图 9  M11卫星与M21卫星间传输效能对比

    Figure 9.  Comparison of transmission efficiency between M11 and M21

    图 10  M11与第二轨道面卫星间传输效能对比

    Figure 10.  Comparison of transmission efficiency between M11 and satellites in the second orbit plane

    表  1  M11与同轨道面卫星之间的距离

    Table  1.   Distances between M11 and satellites in the same orbit

    目标卫星 星间距离/km
    M12 21 358.68
    M13 39 465.59
    M14 51 564.07
    下载: 导出CSV

    表  2  星间通信链路中的参数设置

    Table  2.   Parameter setting of inter-satellite communication links

    参数 数值
    传输误码率 10-6
    通信频率/GHz 30
    发射功率/dBW 20
    发射天线增益/dB 25.5
    接收天线增益/dB 20
    接收机噪声温度/K 300
    下载: 导出CSV
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出版历程
  • 收稿日期:  2019-07-23
  • 录用日期:  2019-10-25
  • 网络出版日期:  2020-04-20

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