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题名: On the optimal accuracy and double solution in the calculation of initial orbits
作者: Jia, P; Wu, L
刊名: CHINESE ASTRONOMY AND ASTROPHYSICS
出版日期: 1999-07-01
卷号: 23, 期号:3, 页码:384-389
关键词: initial orbit ; optimal accuracy ; quasi-optimal algorithm
文章类型: Article
英文摘要: It is shown, by simulated calculation, that the reference vector algorithm we proposed of calculating initial orbits is "quasi-optimal", because its accuracy approaches the Cramer-Rao lower bound in the statistical theory of estimation and is proportional to the observing error. Double solution exists in the orbit calculation: the smaller the eccentricity and the closer the mean anomaly Mo is to +/-90 degrees, the greater is the probability of getting the false solution. We propose an algorithm which gives two solutions, one of which must be the true one and it has a high accuracy.
WOS标题词: Science & Technology ; Physical Sciences
类目[WOS]: Astronomy & Astrophysics
研究领域[WOS]: Astronomy & Astrophysics
收录类别: SCI
语种: 英语
WOS记录号: WOS:000082410600017
Citation statistics:
内容类型: 期刊论文
URI标识: http://libir.pmo.ac.cn/handle/332002/15988
Appears in Collections:空间目标与碎片观测研究基地_期刊论文

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作者单位: 1.Chinese Acad Sci, Inst Syst Sci, Beijing 100080, Peoples R China
2.Acad Sinica, Purple Mt Observ, Nanjing 210008, Peoples R China
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