空间红外望远镜信号采样技术研究与分析  

Research and analysis of signal sampling techniques for space infrared telescope

作　　者：王华[1] 尤鑫川 贺强民[1] WANG Hua;YOU Xin-chuan;HE Qiang-min(Beijing Institute of Space Mechanics&Electricity,Beijing 100094,China)

机构地区：[1]北京空间机电研究所,北京100094

出　　处：《激光与红外》2025年第4期483-490,共8页Laser & Infrared

摘　　要：首先对空间红外望远镜系统噪声和读出模式进行分析,然后对相关双采样、佛勒采样、斜坡采样、多次累积采样四种空间红外望远镜信号采样技术的原理进行介绍,在此基础上对四种采样技术在探测器读出模式、噪声抑制、数据量、宇宙射线干扰识别四个方面的优缺点进行对比分析,最后给出国外空间红外望远镜信号采样技术的选取策略,期望为我国空间红外望远镜的研制提供参考和借鉴。In this paper,the noise and readout modes of space infrared telescopes are analyzed first.Then,the princi-ples of four signal sampling techniques are introduced respectively:C correlated double sampling,Fowler sampling,slope sampling,and multiple accumulation sampling.On this basis,the advantages and disadvantages of four signal sampling techniques are compared and analyzed in four aspects,such as detector readout mode,noise reduction,data volume,and cosmic ray detection.Finally,the selection strategy of foreign space infrared telescope signal sampling technology is given,which is expected to serve as a reference for the development of China's space infrared telescope.

关 键 词：空间红外望远镜 噪声 宇宙射线 信号采样 

分 类 号：TH745[机械工程—光学工程] V447[机械工程—仪器科学与技术]