高帧频低噪声红外焦平面信息获取系统  

Information Acquisition System for Thermal Infrared Focal Plane Array with High Frame-rate and Low-noise

作　　者：程高超[1] 陈小文[1] 王湘波[1] 李春来[1] 王建宇[1] 

机构地区：[1]中国科学院上海技术物理研究所空间主动光电技术重点实验室,上海 200083

出　　处：《红外技术》2013年第7期414-418,424,共6页Infrared Technology

基　　金：国家高技术发展计划(863计划)课题,编号:2012AA121102

摘　　要：设计了一种针对法国引进制冷型高性能320×256元HgCdTe长波红外焦平面探测器MARS LWK508的信息获取系统。该系统包括红外光学镜头、探测器驱动电路、信号处理电路、数据采集与控制电路、图像传输与处理软件等。经过测试,系统在全帧读出时可实现最高200Hz的帧频,面对300K黑体目标测试得到均值噪声为0.7～0.8mV,综合灵敏度优于0.1 K。系统获取的图像经过校正后质量良好。该系统可用于地表热红外成像光谱探测、高速红外监视成像等高端热红外焦平面应用领域。A kind of high-rate and low-noise information acquisition system for French cooled 320X 256 HgCdTe long wave infrared focal plane arrays MARS LW K508 was designed. The system consists of detector drive, signal processing, data acquisition and sequential control, image transmission and processing modules. Experimental results show that the frame frequency of the system can be up to 200 frame/s, the RMS is 0.7-0.8 mV （300 K） and images after nonuniformity correction are clear, which can be used in the high-end thermal infrared focal plane field such as surface thermal infrared spectral detection and high-speed infrared surveillance and imaging.

关 键 词：热红外焦平面 高帧频 低噪声 非均匀性校正 信息获取系统 

分 类 号：TN215[电子电信—物理电子学]