| 初轨的稳健估计算法 |
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| 引用本文： | 贾沛璋,吴连大.初轨的稳健估计算法[J].天文学报,2000,41(2):123-128. |
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| 作者姓名： | 贾沛璋 吴连大 |
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| 作者单位： | 1. 中国科学院系统科学研究所,北京100080
2. 中国科学院紫金山天文台,南京210008 |
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| 摘 要： | 讨论单测角资料(数据中包含异常值)初轨的稳健估计算法．该算法既可用于提供可靠的初轨，又可用作资料预处理，剔除异常值．稳健估计算法的崩溃点为16％至25％，可剔除6σ以上的异常值．
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| 关 键 词： | 初轨 稳健估计 异常值 轨道计算 |
| 修稿时间： | 1999-01-11 |
A ROBUST ALGORITHM OF THE INITIAL ORBIT DETERMINATION |
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| JIA Pei-Zhang,WU Lian-Da.A ROBUST ALGORITHM OF THE INITIAL ORBIT DETERMINATION[J].Acta Astronomica Sinica,2000,41(2):123-128. |
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| Authors: | JIA Pei-Zhang WU Lian-Da |
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| Institution: | JIA Pei-Zhang
;(Institute of System Science, Chinese Academy of Sciences, Beijing 100080);WU Lian-Da
;(Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing 210008) |
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| Abstract: | A robust algorithm of the initial orbit determination based on angular observation including some outliers is presented in this paper. The algorithm can be used to provide reliable initial orbits and to pick out outliers in data preprocessing as well. The breakdown point of this robust algorithm lies between 16% and 25%. Simulations show that the outliers larger than 6o may be rejected. |
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| Keywords: | initial orbit robust estimation outlier |
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