吉林大学学报(信息科学版) ›› 2020, Vol. 38 ›› Issue (4): 428-432.

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北斗卫星整网集中式自主定轨算法研究

林夏1,2,3,4,林宝军1,2,3,4,5,刘迎春1,4,白涛2,武国强2,王正凯1,4   

  1. 1. 上海微小卫星工程中心导航卫星研究所,上海201210; 2. 中国科学院空天信息创新研究院,北京100094; 3. 中国科学院大学
    计算机科学与技术学院,北京100094; 4. 中国科学院微小卫星创新研究院,上海201210; 5. 上海科技大学信息学院,上海201210
  • 收稿日期:2020-03-11 出版日期:2020-07-24 发布日期:2020-08-13
  • 作者简介:林夏( 1991— ) ,男,长春人,上海微小卫星工程中心助理研究员,主要从事卫星姿态轨道控制研究,( Tel) 86-21-50735060( E-mail) RogerLX@ outlook. com; 林宝军( 1963— ) ,男,吉林榆树人,上海微小卫星工程中心研究员,博士生导师,主要从事卫星总体设计研究,( Tel) 86-21-50735060( E-mail) linbjun@ aoe. ac. cn。
  • 基金资助:
    中国科学院国防科技创新重点部署基金资助项目( KGFZD-135-18-008)

Research on Centralized Autonomous Orbit Determination Algorithm for Beidou Satellites

LIN Xia1,2 ,3 ,4 ,LIN Baojun1,2 ,3 ,4 ,5 ,LIU Yingchun1,4 ,BAI Tao2,WU Guoqiang2,WANG Zhengkai1,4#br#   

  1. 1. Navigation Satellite Research Institute,Shanghai Engineering Center for Microsatellites,Shanghai 201210,China; 2. Academy of Opto-Electronics,Chinese Academy of Sciences,Beijing 100094,China; 3. School of Computer Science and Technology,University of Chinese Academy of Sciences,Beijing 100094,China; 4. Innovation Academy for Microsatellites of Chinese Academy of Sciences,Shanghai 201210,China; 5. College of Information,Shanghai Technology University,Shanghai 201210,China
  • Received:2020-03-11 Online:2020-07-24 Published:2020-08-13

摘要: 由于分布式定轨算法只能得到局部次优解,为进一步提升北斗卫星自主导航算法精度,对北斗卫星整网
集中式定轨算法在轨实现方法进行研究。设计了基于推广卡尔曼滤波算法的整网集中式定轨算法及其在轨实
现流程,并利用北斗卫星上的龙芯1E300 处理器对算法精度及工程可行性进行了评估。仿真结果表明,整网集
中式算法精度优于分布式导航算法。且通过在龙芯1E300 处理器上仿真验证可知,集中式导航算法已具备星
上使用条件。

关键词: 北斗卫星导航系统, 自主导航, 推广卡尔曼滤波算法, 星间测距

Abstract: Due to the limitation of on-board processing capacity,Beidou satellite uses the distributed algorithm to
realize inter-satellite link autonomous orbit determination. Since the distributed orbit determination algorithm can
only acquire sub-optimal solution,to improve the accuracy of Beidou satellite autonomous navigation algorithm,
the realization method of the centralized orbit determination algorithm for Beidou satellitesis studied. A
centralized orbit determination algorithm based on extended Kalman filter algorithm is proposed and the on-orbit
realization process of the algorithm is designed. Finally,the algorithm accuracy and engineering feasibility are
evaluated by using the LONGXIN 1E300 processor on Beidou satellites. The simulation results show that the
accuracy of the whole network centralized algorithm is better than that of the distributed navigation algorithm. The
simulation on the LONGXIN 1E300 processor shows that the centralized navigation algorithm has met the
requirements for satellite application.

中图分类号: 

  • TP273