被动式遥感FTIR测量时的仪器响应函数校正  

The Calibration of Instrument Response Function during Passive FTIR Measurement

作　　者：张黎明[1] 张琳[1] 李燕[1] 王晓斐[1] 刘丙萍[1] 任翌博[1] 王俊德[1] 

机构地区：[1]南京理工大学现代光谱研究室,江苏南京210014

出　　处：《光谱学与光谱分析》2006年第1期45-46,共2页Spectroscopy and Spectral Analysis

基　　金：国家自然科学基金(20175008);中国博士后科学基金;南京理工大学青年学者基金(Njust200303)资助项目

摘　　要：在应用红外发射光谱来获得某些红外源的绝对光谱能量数据,如辐射源光谱辐射通量密度、辐射源光谱辐射强度、辐射源光谱辐射亮度及光谱辐射照度等时,需要得知不同条件下的仪器响应函数。文章对被动式遥感FTIR测量时的仪器响应函数进行了校正,实验结果表明:在不同的实验条件下,仪器响应函数的变化规律是不同的,它不仅和校正时所采用的绝对黑体温度有关,而且和校正中仪器接收到的信号大小有直接关系。因此,在被动式测量时,要密切注意发射源温度以及发射源发射信号大小,以便获得最佳仪器响应函数校正结果。In order to obtain infrared spectral radiance distribution of some infrared sources, such as spectral radiant flux density, spectral radiant intensity, spectral radiance and spectral irradiance, the instrument response function under different conditions must be known. In the present paper, the calibration of instrument response function during passive FTIR measurement has been discussed. The experimental results illustrate that under different experimental conditions, the instrument response function varies not only with the temperature of the blackbody but also with the signal amplitude received by the infrared instrument. So, during passive FTIR measurement, the temperature and the emission signal amplitude of the source must be observed carefully in order to get satisfactory instrument response function.

关 键 词：遥感FTIR 红外发射光谱 仪器响应函数 校正 

分 类 号：O657.3[理学—分析化学]