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题名:
Processing Centroids of Smearing Star Image of Star Sensor
作者: Liao, Yufu1,2; Liu, Enhai1; Zhong, Jianyong1; Zhang, Hui1
刊名: MATHEMATICAL PROBLEMS IN ENGINEERING
出版日期: 2014
文章类型: Article
英文摘要: A novel method was presented for increasing the accuracy of subpixel centroid estimation for smearing star image. Model of the smearing trajectory of smearing star was built. It helped to study the analytical form of the errors, caused by image smearing, for centroid estimation. In the algorithm, the errors were estimated with accuracy and used to revise the centroid processed by CoM (centre of mass). Simulations have been run to study the effect of angular rates, integration time, and actual position of star on the accuracy of centroid estimation. Results were presented which suggested that the proposed algorithm had a precision better than 1/10 of a pixel when the angular rate was up to 3.0 deg/s.
WOS标题词: Science & Technology ; Technology ; Physical Sciences
类目[WOS]: Engineering, Multidisciplinary ; Mathematics, Interdisciplinary Applications
研究领域[WOS]: Engineering ; Mathematics
关键词[WOS]: TRACKERS
收录类别: SCI
语种: 英语
WOS记录号: WOS:000335048700001
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.ioe.ac.cn/handle/181551/2444
Appears in Collections:光电技术研究所被WoS收录文章_期刊论文

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作者单位: 1.Chinese Acad Sci, Inst Opt & Elect, Chengdu 610200, Sichuan, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100191, Peoples R China

Recommended Citation:
Liao, Yufu,Liu, Enhai,Zhong, Jianyong,et al. Processing Centroids of Smearing Star Image of Star Sensor[J]. MATHEMATICAL PROBLEMS IN ENGINEERING,2014.
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