基于光纤面板的星敏感器光学系统杂散光抑制技术研究  

Research on the Suppression Technology of Stray Light in Star Sensor Optical System Based on Fiber Optic Panel

作　　者：齐静雅 江洁[2] 胡轶瑶 马逸飞 周笑艳 张林[2] 余成武[1] QI Jing-ya;JIANG Jie;HU Yi-yao;MA Yi-fei;ZHOU Xiao-yan;ZHANG Lin;YU Cheng-wu(Beijing Institute of Control Engineering,Beijing 100190,China;College of Precision Instruments and Optoelectronics Engineering,Tianjin University,Tianjin 300072,China)

机构地区：[1]北京控制工程研究所,北京100190 [2]天津大学精密仪器与光电子工程学院,天津300072

出　　处：《光学与光电技术》2024年第6期107-113,共7页Optics & Optoelectronic Technology

基　　金：民用航天基金(D020502)资助项目。

摘　　要：杂散光会严重影响星敏感器光学系统的成像质量,现有抑制杂散光的方法多采用遮光罩等,其对小角度的杂散光抑制能力较为有限且尺寸较大。针对上述问题,提出了一种基于光纤面板抑制视场内外杂散光的方法。通过仿真软件分析了三种系统:仅含遮光罩系统、仅含探测器前光纤面板系统、探测器前光纤面板和遮光罩二者结合系统,并对比研究了三种系统在不同视场角下的点源透射率情况。验证了光纤面板对小角度入射(10°~20°)杂散光的抑制能力优于遮光罩;在大角度入射光下,加入光纤面板亦能有效抑制杂散光,视场角25°的条件下,点源透射率降低至3.8×10^(-5)以下。创新性地提出采用光纤面板取代传统遮光罩对系统杂散光进行抑制,对促进星敏感器技术的小型化具有指导意义。Stray light can seriously affect the imaging quality of star sensor optical systems.Existing methods for suppressing stray light often use baffle,which have limited ability to suppress small angle stray light and are relatively large in size.A method based on fiber optic panels is proposed to suppress stray light inside and outside the field of view in response to the above issues.Three systems are analyzed by using simulation software:a system with only a baffle,a system with only a fiber optic panel in front of the detector,and a system combining the fiber optic panel in front of the detector and the baffle.The point source transmittance of the three systems is compared and studied at different field angles.It is verified that the suppression ability of fiber optic panels on stray light at small angles(10°~20°)is superior to that of baffles.Under high angle incident light,the addition of fiber optic panels can effectively suppress stray light.Under the condition of a field of view angle of 25°,the point source transmittance decreases to below 3.8×10^(-5).Innovatively proposing the use of fiber optic panels instead of traditional baffles to suppress stray light in the system has important engineering significance for promoting the miniaturization of star sensor technology.

关 键 词：星敏感器 遮光罩 光纤面板 点源透过率 杂散光 

分 类 号：V448.222[航空宇航科学与技术—飞行器设计]