凝视型红外探测系统的三维噪声研究  

Research on three-dimensional noise of staring infrared detection system

作　　者：赵晟 赵亚南 刘建旭 朴宇鹏 吴玮 ZHAO Sheng;ZHAO Ya-nan;LIU Jian-xu;PIAO Yu-peng;WU Wei(Shanghai Aerospace Control Technology Institute,Shanghai 201109,China)

机构地区：[1]上海航天控制技术研究所,上海201109

出　　处：《激光与红外》2024年第8期1241-1249,共9页Laser & Infrared

摘　　要：应用三维噪声模型分析了凝视型中波红外探测系统的噪声特性,并研究了信息处理方法对各类噪声分量的抑制效果。在不同积分时间下对不同温度的面源黑体连续采集图像数据并进行分析,发现增加积分时间和黑体入射能量时,各噪声分量都先以非线性形式迅速减小再逐渐趋于恒定,且各噪声分量会呈现出各自特有的图像模式。研究发现在未经任何信息处理的原始图像中,空间噪声是系统噪声的主要成分;综合运用空间和时间噪声抑制方法后,空间噪声几乎被完全抑制,时间噪声降低约一半,瞬态像素噪声成为噪声的主要成分。In this paper,a three-dimensional noise model is applied to analyze the noise characteristics of a gaze-type mid-wave infrared detection system,and the suppression effects of information processing methods on various types of noise components are investigated.The image data are continuously collected and analyzed at different integration times for different temperatures of surface source blackbodies,and it is found that when the integration time and the incident energy of the blackbody increase,each noise component decreases rapidly and then tends to be constant in a nonlinear form,and each noise component presents its own unique image pattern.It is also found that spatial noise is the main component of system noise in the original image without any information processing.After comprehensive application of spatial and temporal noise suppression methods,the spatial noise is almost completely suppressed,the temporal noise is reduced by about half,and the transient pixel noise becomes the main component of noise.

关 键 词：三维噪声 中波红外 凝视型探测系统 噪声抑制 

分 类 号：TN215[电子电信—物理电子学] TP73[自动化与计算机技术—检测技术与自动化装置]