天地一体化信息网络 ›› 2022, Vol. 3 ›› Issue (1): 72-78.doi: 10.11959/j.issn.2096-8930.2022010

• 研究 • 上一篇    下一篇

低轨通信星座与地球站连通规划方法

赵书阁, 李小玉, 刘奇, 武爱景, 魏璟   

  1. 航天科工空间工程发展有限公司,北京 100854
  • 修回日期:2022-02-02 出版日期:2022-03-01 发布日期:2022-03-01
  • 作者简介:赵书阁(1987-),男,航天科工空间工程发展有限公司高级工程师,主要研究方向为轨道设计与任务规划、频率兼容性技术
    李小玉(1984-),女,航天科工空间工程发展有限公司高级工程师,主要研究方向为卫星星座轨道设计
    刘奇(1994-),男,航天科工空间工程发展有限公司博士生,主要研究方向为轨道设计与构型保持
    武爱景(1986-),女,航天科工空间工程发展有限公司工程师,主要研究方向为卫星系统综合测运控、卫星通信技术
    魏璟(1986-),女,航天科工空间工程发展有限公司工程师,主要研究方向为卫星频谱管理政策
  • 基金资助:
    民用航天技术预先研究项目

Connection Planning Method Between LEO Communication Constellation and Earth Station

Shuge ZHAO, Xiaoyu LI, Qi LIU, Aijing WU, Jing WEI   

  1. CASIC Space Engineering Development Co., Ltd., Beijing 100854, China
  • Revised:2022-02-02 Online:2022-03-01 Published:2022-03-01
  • Supported by:
    Civil Aerospace Technology Advance Research Project

摘要:

提出一种低轨通信星座与地球站连通规划方法。考虑低轨通信星座卫星数量较多,直接建立低轨通信星座与多个地球站的连通规划方法难度较大,依次建立单颗卫星与单个地球站连通规划方法、星座与单个地球站连通规划方法、卫星星座与多个地球站连通规划方法,前一规划方法是后一规划方法的基础,后一规划方法是前一规划方法的拓展,最终形成一种低轨通信星座与多个地球站的连通规划方法。典型的仿真算例表明,地球站与卫星星座连通的过程中,地球站到卫星的仰角不低于通信仰角下限;在地球站与卫星的单个连通段内,离轴角的变化趋势都是先变小后变大;地球站选择的连通卫星分别展现轨道面切换和一个轨道面内的卫星依次切换,都间接验证了连通规划策略的正确性。

关键词: 低轨通信星座, 连通规划, 地球站

Abstract:

A connection planning method between LEO communication constellation and earth station was proposed.Considering the large number of LEO communication constellation satellites, it is diffi cult to directly establish the connection planning method between LEO communication constellation and multiple earth stations.The connection planning method between single satellite and single earth station, the connection planning method between satellite constellation and single earth station, the connection planning method between satellite constellation and multiple earth stations were established.The former planning method is the basis of the latter planning method, which is the expansion of the former planning method, and fi nally forms a connection planning method between LEO communication constellation and multiple earth stations.A typical simulation example showed that in the process of connecting between the earth station and the satellite constellation, the elevation from the earth station to the satellite was not lower than the lower limit of the communication elevation.In the single connecting section between the earth station and the satellite, the variation trend of off -axis angle decreases fi rst and then increases.The connected satellites selected by the earth station showed the orbital plane switching and the sequential switching of satellites in an orbital plane, which indirectly verifi ed the correctness of the connection planning strategy.

Key words: LEO communication constellation, connectivity planning, earth station

中图分类号: 

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