“…Thermal infrared radiometer is used to measure the target's radiance on the ground to obtain the temperature [6] , which can provide traceable and high-precision data for calibration and product inspection, and is the key to the quantitative application of remote sensing temperature products. At present, the common measurement methods of ground temperature are infrared multi-channel radiometer and infrared hyperspectral radiometer [7][8][9][10] . Yan L. et al used a multi-channel radiometer to calibrate Feng Yun satellite [6] , and Donlon C. et al used a self-calibrated infrared spectrometer to automatically observe SST [7] .…”