Study on measurement accuracy of MWIR radiation characteristics based on different atmospheric models

Aiming at the influence of atmospheric transmission correction accuracy on the inversion of target radiation characteristics in the measurement of infrared radiation characteristics, this paper compares the deep insight based on China's typical atmospheric model combined with real-time meteorological data with the MODTRAN correction data of classical atmospheric model, and uses the 200mm medium wave infrared radiation measurement system for field test. The atmospheric transmittance and range radiation correction data calculated by DeepInSight mode are better than the correction results of MODTRAN. The radiation measurement accuracy of DeepInSight at 1.5km is about 2.7%, which is better than that of the classical model MODTRAN. The results show that DeepInSight can further improve the accuracy of target infrared radiation measurement.