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弹载星敏感器太空光环境研究

Keywords: 弹载星敏感器,太空光环境,太阳光,月亮光,地气光

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Abstract:

分析弹载星敏感器对星空成像时的太空光环境.运用普朗克黑体辐射定律,估算杂散光(太阳光、月亮光、地气光)在星敏感器工作高度处的辐照度;计算任意时刻星敏感器光轴与杂散光之间的夹角;综合考虑遮光罩的抑制杂散光作用,建立弹载星敏感器太空光环境的实时模型.仿真结果表明,星敏感器光轴与杂散光之间的夹角与实际情况吻合,该模型能够方便实时地估算弹载星敏感器的太空光环境,可为确定星敏感器的选星策略和导弹发射窗口提供依据.

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