基于STK的星敏杂光抑制的仿真分析  

Simulation and Analysis for the Stray Light Suppressing Based on STK

作　　者：安萌[1] 张健[1] 王啸虎[1] 韩波[1] 

机构地区：[1]中国空间技术研究院总体部,北京100094

出　　处：《战术导弹技术》2013年第3期59-66,共8页Tactical Missile Technology

摘　　要：当星敏感器受到杂光影响时,其信噪比会降低,甚至无法测量星体姿态。星敏抑制杂光的通常手段是增加遮光罩,遮光罩的长度与其杂光抑制角都直接影响到进入视场的杂光。将资源一号02C星、03星的星敏感器杂光抑制性能作为研究重点,分析了在一定的星敏安装条件下,卫星姿态变化与星敏入瞳杂光系数的关系。同时,结合卫星在轨测试数值,对仿真分析结果进行了进一步的验证。SNR of the star sensor will decrease,even cannot measure attitude of satellite when stray light happen.The common way for suppressing stray light of star sensor is adding a baffle,the length of baffle and its restrain angle may directly affect the energy of stray light in the field of view.Research on 02C and 03 satellite star sensor stray light suppressing capability is put forward as the keypoint,the relation between attitude change and stray light entrance factor is analyzed under the condition of star sensor installation.Combined the test value on-orbit,simulation and analysis results are verified.

关 键 词：传输型遥感卫星 星敏感器 杂光抑制 

分 类 号：V412.42[航空宇航科学与技术—航空宇航推进理论与工程]