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单站观测卫星初轨计算中的初值方法

刘艳芳,洪炳熔   

  1. 哈尔滨工业大学!哈尔滨150001,哈尔滨工业大学!哈尔滨150001
  • 发布日期:1999-12-25

Initial Value Method of Orbit Determination Using a Single GPS Satellites

Liu Yanfang Hong Bingrong (Harbin Institute of Technology,Harbin 150001)   

  • Published:1999-12-25

摘要: 研究了用单个观测站粗略确定低轨卫星轨道的问题, 建立了在时间轴上拓展的测量方程组, 并着重讨论了其中的初值问题; 给出了两种基于线性变换的初值方法, 并对其性能做了比较。实验结果证明: 这些方法能给出一个确定的、实用的初值, 大大减少了初轨计算的计算量, 并使得算法收敛更加有保障, 在工程实用方面比传统的猜测方法具有较大优势。

关键词: 初始轨道, 边值问题, 线性变换, 卫星

Abstract: Based on the research of orbit determination using a single GPS satellites,two effective methods of getting initial value and comparison of their performance are discussed.Computer simulation shows the second method can give a fixed and practical initial value.As a result,the amount of calculation is cut down greatly and the converge performance of the algorithm is improved.This technique is superior to the traditional guess method in the engineering field.