面向高精度太阳敏感器的探测器复用技术

Multiplexing image detector for accurate sun sensors

为了提高太阳敏感器的精度,同时实现太阳敏感器的大视场与高精度,该文提出了一种探测器复用技术,解决了精度与视场角相互制约的矛盾。该技术利用带有多组定位孔的光线引入器,将太阳敏感器的视场进行了细分,并且通过数值仿真对定位孔图案进行了优化设计。基于探测器复用技术的太阳敏感器原理样机的测试实验表明:其精度可达5″(3σ),视场角为105°×105°。该技术能够将太阳敏感器的精度提升到角秒量级,同时保持较大视场角。

A multiplexing image detector was developed to balance the need for accuracy with the need for a large field of view（FOV）.A mask with different groups of positioning apertures was used to divide the FOV into several sub regions with numerical simulations used to optimize the mask pattern.Tests indicate that the sun sensor prototype provides an accuracy of 5″（3σ）within the 105°×105°FOV.Thus,this prototype is an accurate arc-second class sensor with a large FOV.