CAJ | 학술논문

红外辐射定标是红外遥感信息定量化的关键技术，对所测光谱进行定标是定量分析中的重要环节。采用自行研制长波红外高光谱成像光谱仪原理实验装置（简称 CHIPED-I）进行验证，用黑体对实验装置进行了两点线性定标，将测量的相对强度转化成目标的绝对辐射亮度谱，采用亮温法算出标定后的亮温光谱。结果表明，这种辐射定标方法用于长波红外高光谱成像光谱仪方法可行，这对进一步分析大气透过率和反演大气中红外活性气体浓度具有实际意义。
홍외복사정표시홍외요감신식정양화적관건기술，대소측광보진행정표시정량분석중적중요배절。채용자행연제장파홍외고광보성상광보의원리실험장치（간칭 CHIPED-I）진행험증，용흑체대실험장치진행료량점선성정표，장측량적상대강도전화성목표적절대복사량도보，채용량온법산출표정후적량온광보。결과표명，저충복사정표방법용우장파홍외고광보성상광보의방법가행，저대진일보분석대기투과솔화반연대기중홍외활성기체농도구유실제의의。
Infrared radiometric calibration is of critical importance for information quantification of remote sensing of environment in infrared spectrum. In the quantitative analysis, the calibration of the measured spectra is very imporant. LWIR Interferometric Hyperspectral imager Spectrometer Prototype(CHIPED-I) is developed for studying Radiation Calibration. Two-point linear calibration method is carried out for the spectrometer by using blackbody respectively. Firstly, relative intensity is converted to the absolute radiation lightness of the object. Then, radiation intensity of the object is converted into the brightness temperature spectrum by the method of brightness temperature. The result indicats that such method of Radiation Calibration calibration is very good , which is of significance to the further analysis of atmospheric transmission and the retrieval of the concentration of infrared active gas in atmosphere.