CCD太阳敏感器大角度入射光能衰减模型

空间控制技术与应用 ›› 2009, Vol. 35 ›› Issue (2): 42-45.

CCD太阳敏感器大角度入射光能衰减模型

张春明，贾锦忠，王立

北京控制工程研究所，北京 100190

收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2009-04-25 发布日期:2009-04-25

A Model about Energy Attenuation for Sunlight Incident Upon CCD Sensors in Large Angle

ZHANG Chunming, JIA Jinzhong, WANG Li

Beijing Institute of Control Engineering, Beijing 100190，China

Received:1900-01-01 Revised:1900-01-01 Online:2009-04-25 Published:2009-04-25

摘要/Abstract

摘要： 太阳敏感器的测量精度主要受地球反照的影响。通过建立大角度入射光能衰减模型，结合地球反照辐照度峰值的计算，从理论上说明了这种影响与太阳入射角的关系。以CCD太阳敏感器为例，当太阳出现在敏感器的视场边缘时，而地球反照处于最坏情况，地球反照和太阳在CCD上产生的辐照度具有可比性。最后提出了改进太阳敏感器的结构参数来减小地球反照对太阳敏感器测量影响的方法。

关键词: CCD太阳敏感器, 地球反照, 辐射强度, 能量衰减, 透射率

Abstract: The measurement accuracy of Sun Sensor is mainly influenced by earth albedo. In this paper, a model about energy attenuation for sunlight incident upon CCD Sun Sensor in large angle is proposed. Through computing peak value of earth albedo irradiance, the influence is correlated with sunlight’s incident angle in theory. For instance, the irradiance produced by earth albedo is comparable to that of the Sun, when the Sun appears in the edge of field of view of CCD Sun Sensor and earth albedo appears in the worst condition. Finally a method about the improvement of structural parameter of Sun Sensor to decrease the influence of earth albedo on Sun Sensor is presented.

Key words: CCD Sun Sensor, earth albedo, radiant intensity, energy attenuation, ratio of transmission

中图分类号:

V448.22

张春明，贾锦忠，王立. CCD太阳敏感器大角度入射光能衰减模型[J]. 空间控制技术与应用, 2009, 35(2): 42-45.

ZHANG Chunming, JIA Jinzhong, WANG Li. A Model about Energy Attenuation for Sunlight Incident Upon CCD Sensors in Large Angle[J]. , 2009, 35(2): 42-45.