红外技术2025，Vol.47Issue(4)：403-409,7.
用于空间目标天基红外探测的同轴光学系统杂散光抑制技术
Stray Light Suppression of Coaxial Optical System for Space-Based Infrared Detection of Space Target
孟繁多 1王潇 2童卫明 1高幸华 1马文坡1
作者信息
- 1. 北京空间机电研究所,北京 100094
- 2. 北京控制工程研究所,北京 100094
- 折叠
摘要
Abstract
Space-based infrared detection systems for space targets are affected by strong stray light from the Earth and atmosphere outside the field of view when detecting faint targets in low Earth orbit.Therefore,such detection systems have high requirements for stray light suppression.Based on the requirements of space-based infrared detection for space targets,this study analyzes the stray light suppression technologies of several foreign space-based infrared detection systems,investigates the stray light suppression technology of coaxial optical systems used for space-based infrared detection of space targets,and proposes a technical approach to further improve stray light suppression by adding a center baffle to the back of the secondary mirror.Using SABER's coaxial optical system as an example,the stray light suppression capability was simulated before and after adding the center baffle.The simulation results show that,after adding the center baffle to the back of the secondary mirror,the point source transmittance(PST)of the optical system in the detection direction at the edge is significantly reduced by 46％and 35％when the off-axis angles are 5° and 10°,respectively.关键词
空间目标/天基红外探测/同轴光学系统/杂散光抑制/中心遮光罩Key words
space target/space-based infrared detection/coaxial optical system/stray light suppression/center baffle分类
计算机与自动化引用本文复制引用
孟繁多,王潇,童卫明,高幸华,马文坡..用于空间目标天基红外探测的同轴光学系统杂散光抑制技术[J].红外技术,2025,47(4):403-409,7.
