| 初轨计算的参考矢量法 |
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| 引用本文： | 贾沛璋,吴连大.初轨计算的参考矢量法[J].天文学报,1997,38(4):353-358. |
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| 作者姓名： | 贾沛璋 吴连大 |
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| 作者单位： | 中国科学院系统科学研究所!北京，100080，中国科学院紫金山天文台!南京，20008 |
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| 摘 要： | 本文从最优估计角度研究短弧资料定初轨问题，提出一种最小二乘估计算法，同时提出一种符合实用的参考矢量法．仿真结果显示，参考矢量法克服了现有初轨算法所承受病态影响，把定轨精度提高到接近最佳水平．
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| 关 键 词： | 初轨 病态 最优估计 |
A REFERENCE VECTOR ALGORITHM FOR THE INITIAL ORBIT COMPUTATION |
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| Jia Pei-zhang.A REFERENCE VECTOR ALGORITHM FOR THE INITIAL ORBIT COMPUTATION[J].Acta Astronomica Sinica,1997,38(4):353-358. |
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| Authors: | Jia Pei-zhang |
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| Abstract: | In this paper the problem of determination of the initial orbit using short-arcobservations is inveshgated from the view point of optimal estimation. Besides, a newleast square algorithm and a new reference vector algorithm, which is applicable toengineering, are presented. The simulated results presented in the paper show that thereference vector algorithm can eliminate the influence of the ill-condition, whichdecreases the accuracy of the known initial orbit algorithm, and that it can raise theaccuracy to neariy optimal level. |
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| Keywords: | initial orbit ill-condition optimal estimation |
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