Digital image generation of star map

ZHANG Wei; PAN Hai-bin; BAO Wen-zhuo; CONG Ming-yu; CAO Yi-ming; LI Ke-xin

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Digital image generation of star map

Article | 更新时间：2020-08-12

- Digital image generation of star map
- Optics and Precision Engineering Vol. 17, Issue 3, Pages: 676-682(2009)
- 作者机构：
  
  哈尔滨工业大学空间光学工程研究中心,黑龙江哈尔滨,150001
- 作者简介：
- 基金信息：
- DOI：
  CLC： TP751;TP391.9
- Received：03 March 2008，
  
  Revised：23 April 2008，
  
  Published Online：25 March 2009，
  
  Published：25 March 2009
- 稿件说明：
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张伟, 潘海斌, 鲍文卓, 丛明煜, 曹移明, 李克新. 星空背景数字图像的生成[J]. 光学精密工程, 2009,17(3): 676-682

ZHANG Wei, PAN Hai-bin, BAO Wen-zhuo, CONG Ming-yu, CAO Yi-ming, LI Ke-xin. Digital image generation of star map[J]. Editorial Office of Optics and Precision Engineering, 2009,17(3): 676-682
张伟, 潘海斌, 鲍文卓, 丛明煜, 曹移明, 李克新. 星空背景数字图像的生成[J]. 光学精密工程, 2009,17(3): 676-682 DOI：

ZHANG Wei, PAN Hai-bin, BAO Wen-zhuo, CONG Ming-yu, CAO Yi-ming, LI Ke-xin. Digital image generation of star map[J]. Editorial Office of Optics and Precision Engineering, 2009,17(3): 676-682 DOI：

摘要

提出了一种相机在回路的星空背景数字图像生成方法。依据光度量与辐射度量的关系

建立恒星成像信号强度模型

计算目标在焦面的成像强度。通过星图软件SKYMAP对天区内恒星数目及星等进行统计

拟合得到相机观测视场内恒星数目与星等的统计函数。使用该统计函数模拟相机视场内的恒星数目及其对应的星等。最后

基于成像信号强度模型、恒星数目及星等的统计函数以及恒星在焦面的成像特性

提出全天区统计的星空背景数字图像生成方法。基于具体的相机CCD与光学系统参数

对星空背景数字图像生成方法进行仿真验证。结果表明

该方法可生成较大星等(星等＞10)的星空背景图像

基本满足了现有空间目标检测与跟踪算法对星空背景数据的要求。

Abstract

A digital image generating method based on the CCD and optical parameters of sensor system was presented. According to the relation of photometry and radiometry

a model of star imaging gray value was produced to calculate the imaging intensity for target in focal plane. Then

the number and magnitude of stars in the space were counted to obtain the statistic regularity of stars in the field of view by star map software SKYMAP. Finally

the digital image generating method was set up acoording to the statistic regularity of stars in the space and star image characteristic on CCD focal plane.The digital image generating method was simulated based on CCD and optical system parameter

results show that the method can generate a star map with higher apparent magnitude (magnitude＞10) and can satisfy the requirements of space object detection and surveillance for star map.

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references

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