中国空间科学技术

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基于双星系统定轨的数学方法

王炯琦;周海银;赵德勇;吴翊;   

  1. 国防科学技术大学,国防科学技术大学,国防科学技术大学,国防科学技术大学 长沙410073,长沙410073,长沙410073,长沙410073
  • 发布日期:2006-10-25

Mathematical Method for Orbit Determination Based on GEOSTAR System

Wang Jiongqi Zhou Haiyin Zhao Deyong Wu Yi(National University of Defense Technology,Changsha 410073)   

  • Online:2006-10-25
  • Supported by:
    航天支撑技术基金(GFKD-HT-2006);; 国家自然科学基金(60572136)共同资助

被引次数

1

摘要： 通过对双星系统定轨原理的分析,结合卫星的动力学模型,采用联合多时刻观测系统的数据融合方法,得到了一种解算卫星轨道状态的解析方法,同时还给出了误差传递方式。该方法不需要标称轨道,计算方便。理论分析和仿真计算表明,方法确实可行,且定轨精度有所提高。

关键词: 轨道计算, 动力学方程, 误差分析, 定位系统, 卫星

Abstract: Generally,it is impossible to determine the kinetic states of satellite only by twoGEOSTAR's tracking distance data.In order to do this work,some accessory information must be given,forexample several measurement data and dynamic model of satellite.The mathematical principle of GEOSTARsystem for orbit determination is analyzed.By applying range measurement data fusion and integrating thedynamic model,the trajectory of the user satellite was achieved.Simultaneously,the transfer relation of er-ror was put forward.This method doesn't need the referenced orbit of satellite,so it is very convenient.Theoretical analysis and simulation calculation prove that this method is more feasible and precise.