A way of extracting observed stars for star image simulation

RAO Cai-jie; FANG Jian-cheng

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A way of extracting observed stars for star image simulation

更新时间：2020-08-12

- A way of extracting observed stars for star image simulation
- Optics and Precision Engineering Vol. 12, Issue 2, Pages: 129-135(2004)
- 作者机构：
  
  北京航空航天大学, 北京, 100083
- 作者简介：
- 基金信息：
- DOI：
  CLC： V249.323
- Received：30 November 2003，
  
  Revised：12 March 2004，
  
  Published Online：15 April 2004，
  
  Published：15 April 2004
- 稿件说明：
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饶才杰, 房建成. 一种星图模拟中观测星提取的方法[J]. 光学精密工程, 2004,(2): 129-135

RAO Cai-jie, FANG Jian-cheng. A way of extracting observed stars for star image simulation[J]. Editorial Office of Optics and Precision Engineering, 2004,(2): 129-135
饶才杰, 房建成. 一种星图模拟中观测星提取的方法[J]. 光学精密工程, 2004,(2): 129-135 DOI：

RAO Cai-jie, FANG Jian-cheng. A way of extracting observed stars for star image simulation[J]. Editorial Office of Optics and Precision Engineering, 2004,(2): 129-135 DOI：

摘要

为了利用计算机动态实时地模拟生成星敏感器拍摄到的星图

针对球坐标系特点

提出了一种改进的高效且适应性强的观测星提取方法.通过对天球分区法在高纬度区域的完善

解决了星敏感器圆形视场在高纬度区域实际的赤经范围计算问题.进一步介绍了一种新的对分区节点进行判断的改进方法

还对提高观测星提取效率的措施(细化分区、采用坐标变换和分步提取)进行了探讨.分析表明

改进的分区法可减轻动态实时模拟星图时的计算压力

效率高

能适应天球中各纬度区域

且逻辑描述简洁

适宜编程.将该方法运用于软件的实现

满足了星图动态实时模拟的要求.

Abstract

A highly efficient and adaptive way of extracting observed starts from the sky is proposed according to the characteristics of celestial coordinates for real-time computer simulation of star images. By calculating the vertical FOV span to ameliorate the zoning method

an improved zoning method is proposed for identification of nodes in the zone of celestial sphere. Measures to improve its efficiency further

such as shortening span of zone

coordinate transformation

and two-step extraction

are discussed as well. Analyses indicate that the method proposed is highly efficient and adaptive

and suitable for real-time simulation of star images

and its logic description is simple to program.

关键词

Keywords

references

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许世文,龙夫年,付苓,等.实时星场模拟器中的坐标变换[J] .哈尔滨工业大学学报,1998,30(5):118-120.XU SH W, LONG F N. FU L, et al . Coordinate transformation in real-time star field simulator[J] .Journal of Harbin Institute of Technology, 1998, 30(5): 118-120.(in Chinese)

陈元枝,郝胜国,郝志航.连通聚类星识别方法[J] .光学精密工程,2000,8(6):217-220.CHEN Y ZH, HAO SH G, HAO ZH H. Method for star identification using connection cluster[J] . Optics and Precision Engineering, 2000,8(6): 217-220.(in Chinese)

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郝胜国,郝志航.星敏感器星像模拟软件的研究[J] .光学精密工程,2000,8(3):208-212.HAO SH G, HAO ZH H. Star image simulation software of star-tracker[J] . Optics and Precision Engineering,2000,8(3):208-212.(in Chinese)

张文明,林玲,郝永杰,等.小型星模拟器中星图动态显示系统的设计[J] .光电工程,2000,27(5):11-14.ZHANG W M, LIN L, HAO Y J, et al. Design of a dynamic display system for star map in small-sized star simulator[J] . Opto-electronic Engineering, 2000,27(5): 11-14.(in Chinese)

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