双波段热成像系统光谱匹配因数  

The Spectral Matching Factor of the Double Wave Band Thermal Imaging Systems

作　　者：赵进豪[1] 褚云汉[1] 李茜[1] 

机构地区：[1]昆明物理研究所,云南昆明650223

出　　处：《红外技术》2004年第1期34-37,共4页Infrared Technology

摘　　要：计算了双波段 (3～ 5 μm ,8～ 1 4 μm)HgCdTe红外探测器及热成像系统 ,在不同天气 (晴、小雨、轻雾 )条件下 ,对不同温度 (T =30 0 ,5 0 0 ,80 0 ,1 0 0 0K)目标辐射的光谱匹配因数。并与长波 (8～ 1 4 μm)热成像系统光匹配因数进行了对比。结果表明 ,双波段HgCdTe热成像系统 ,对室温、中温及高温目标均有较高的光谱匹配因数 (α 0 .5 3)。这大大改进提高了单波段长波热像仪对中高温目标的光谱匹配因数 ,同时还大大提高了适应天气变化的能力。The spectral matching factor of the double color(3～5,8～14 μm)HgCdTe IR Detector and thermal imaging systems under various weather conditions (Sunny ady,Small rain,light fog)for different temperature( T =300,500,800,1000 K) targets has been calculated in the paper. And contrast with the spectral matching factor of the long wavelength (8～14 μm) thermal imaging sysems. The results indicated, double color HgCdTe thermal imaging system all have more large spectral matching factor for room temperature, middle, high temperature targets. It greatly increases the spectral matching factor of the long wavelength thermal imaging systems for the middle, high temperature targets. And greatly increase ability to adapt weather change.

关 键 词：双波段热成像系统 光谱匹配因数 红外探测器 适应天气变化能力 

分 类 号：TN215[电子电信—物理电子学]