摘要
介绍了用蒙特卡洛法进行星敏感器杂光分析的基本思想、数学模型以及表面热辐射概率模型 ,对典型卫星星敏感器的杂光传递进行了模拟。在复杂的杂光环境下 ,建立杂光传递模型 ,获得了星敏感器杂光环境的定量杂光贡献 ,并对大衰减比遮光罩及光学系统内的杂光传递进行了跟踪 。
The Monte-Carlo method is introduced to a na lyze suppression of stray light. This paper puts emphasis on its principle and m odelling, including the basic idea, mathematic model and the probability model o f the surface radiation. Then stray light propagation to a typical star sensor f or spacecrafts has been simulated. A model of stray light propagation was built for analyzing the stray light under complex environment. Quantitative contributi on of the environment of the stray light to the star sensor is calculated, the s tray light propagation inside the light-shield with large attenuation ratio and the optical system has been tracked, finally the suppressing capability of the l ight-shield obtained. <
出处
《航天控制》
CSCD
北大核心
2004年第3期58-61,共4页
Aerospace Control
关键词
星敏感器
杂光
蒙特卡洛法
Star sensor Stray light Monte-Carlo method
