大气环境红外甚高光谱分辨率探测仪光谱定标

为了对大气环境红外甚高光谱分辨率探测仪进行全谱段高精度光谱定标，通过分析干涉型光谱仪的工作原理，对光谱漂移因子进行理论推导，发现通过有限光谱位置校正能实现全谱段光谱定标。采用了以波长计为基准，通过连续可调谐激光作为测试光源的光谱定标方法，并以高精度气体池系统进行交叉定标来验证定标精度。试验结果表明，通过测量光谱漂移因子来进行光谱定标的测试精度优于0.004 cm?1，满足高精度光谱仪定标需求，漂移因子能够应用于干涉型光谱仪光谱定标。

Spectral calibration of atmosphere hyper-spectral resolution infrared sounder

In order to calibrate the full spectrum band and high precision of the atmosphere hyper-spectral resolution infrared sounder, by analyzing the working principle of the interference spectrometer and theoretically deducing the spectral drift factor, it was found that the full spectrum band calibration could be realized by the limited spectral position correction. Based on the wavemeter, the method of spectral calibration with continuously tunable laser as the test light source was adopted, and the cross calibration with high-precision gas cell system was used to verify the calibration accuracy. The experimental results show that the test precision of the spectral calibration by measuring the spectral drift factor is better than 0.004 cm?1, which meets the calibration requirements of the high-precision spectrometer. The drift factor can be applied to the spectral calibration of the interference spectrometer.