红外探测器探测率的研究与分析  

Study and analysis of the detectivity of infrared detector

作　　者：徐丽娜[1] 董杰[1] 戴立群[1] 贾慧丽[1] XU Li-na;DONG Jie;DAI Li-qun;JIA Hui-li(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》2018年第4期497-502,共6页Laser & Infrared

摘　　要：在介绍了红外探测器的组成与工作原理的基础上,分析了红外焦平面探测器的噪声等效功率、探测率对空间红外遥感器成像性能的影响,对红外焦平面探测器探测率的影响因素进行了深入研究。通过理论分析,探测率测量值受测试条件影响,积分时间、辐射源温度、背景辐射和1/f噪声等因素对探测器探测率的测试结果都有一定的影响。The composition and working principle of the infrared detector were introduced.The influence of noise e-quivalent power and detectivity on the imaging performance of infrared remote sensor is analyzed,and the influence factors of infrared detector detectivity are studied.Through theoretical analysis,the measured value of the detectivity is afected by test conditions.Integration time,radiation source temperature,background radiation and 1//noise have a certain impact on the detectivity of infrared detector testing results.

关 键 词：红外探测器 噪声等效功率NEP 探测率 遥感 

分 类 号：TN214[电子电信—物理电子学]