| 摘要: |
| 提出了利用星箭分离前后包括对火箭和卫星测量的多测段数据进行统计优化的定
轨方法。在定轨过程中，分别采用了基于单位矢量的状态转移矩阵构造方法和有限差分法来
计算状态转移矩阵，对两种方法的特点进行了分析，并对分段定轨和联合定轨在两种定轨方
法下的计算结果进行了比较。计算结果表明，在星箭分离速度增量与实际情况一致的情况下
，联合定轨的结果优于分段定轨的结果。在相同测量数据条件下，有限差分法定轨的结果优
于单位矢量法。 |
| 关键词: 测控系统 联合统计定轨 单位矢量法 有限差分法 |
| DOI： |
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| 基金项目: |
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| A New United Statistical Orbit Determination Method |
| LI Hong-yan,MU Jun-shan,FU Min-hui,KANG De-yong |
| (China Satellite Maritime Tracking and Control Department,Jiangyin 214431, C
hina) |
| Abstract: |
| A new orbit determination method is proposed, which can statistically optimize and
fuse the observation data of both launch vehicle and its satellite before and a
fter insertion. Both unit vector method(UVM) and finite difference
method(FDM) are used to get state error transition matrix，their features are analysed,and the computational results under the two methods are compared.It is shown that the new method is more optimal than traditiona
l orbit determination method. |
| Key words: statistical orbit determination unit vector method finite difference method |
《电讯技术》编辑部 