| 小视场轻型星敏感器在白天测星中的应用 |
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| 引用本文： | 贺磊,张平,刘效东,张补生,陈巍.小视场轻型星敏感器在白天测星中的应用[J].应用光学,2014,35(2):226-229. |
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| 作者姓名： | 贺磊 张平 刘效东 张补生 陈巍 |
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| 作者单位： | 1.国营第五五九厂,江苏 无锡 214035 |
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| 摘 要： | 从白天天空背景、恒星光谱特性、星敏感器的构造特点3方面分析白天大气层内小视场轻型星敏感器对恒星探测的可行性。在此基础上，采用光谱滤波、合理选择系统参数等方法，研制了小视场轻型星敏感器，并在高海拔地区进行了白天地面观星实验，理论分析和实验结果表明:小视场轻型星敏感器能够实现白天恒星的探测。在3 km海拔高度、大气能见度10 km、视场21.5、太阳规避角30以外、天空晴朗无云的环境下，可探测星等极限值达到3.8等。
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| 关 键 词： | 白天观星 星敏感器 天空背景 光谱滤波 信噪比 |
| 收稿时间： | 2013/8/1 |
Application of light star sensor with small field in stellar measurement during daytime |
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| HE Lei,ZHANG Ping,LIU Xiao-dong,ZHANG Bu-sheng,CHEN Wei.Application of light star sensor with small field in stellar measurement during daytime[J].Journal of Applied Optics,2014,35(2):226-229. |
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| Authors: | HE Lei ZHANG Ping LIU Xiao-dong ZHANG Bu-sheng CHEN Wei |
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| Affiliation: | 1.State 559 Factory,Wuxi 214035,China |
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| Abstract: | The feasibility of the stellar detection within the atmosphere in daytime by using light star sensor with small field was analyzed from the sky background, the spectral properties of star, and the structure characteristic of star sensor. Using the method of spectral filtering and reasonable choice of system parameters, a light star sensor was developed. Moreover, star detect experiment in daytime was carried out in high altitude area. With the observing altitude of 3 km, the atmosphere visibility of 10 km and the field of view of 2°×1.5°, the maximum detectable stellar magnitude limit was 3.8 when the avoiding angle of the sun was out of 30°. The theory analysis and experiment result both indicate that light star sensor with small field can detect star in daytime. |
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| Keywords: | stellar measurement in daytime star sensor sky background spectral filtering signal to noise ratio |
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