Fig. 1. Spectral response functions of Band22, Band23 and BandS

Fig. 2. Schematic of neural networks for retrieving surface emissivity

Fig. 3. Surface emissivity images with a resolution of 100 meters

Fig. 4. Spectral emissivity in the 3.8-4.6 μm band of 4 categories including soil (a), vegetation (b), water (c) and manmade materials (d)

Fig. 5. Coefficient of determination R² of spectrum correlation algorithm

Fig. 6. Schematic of the LOS method

Fig. 7. Schematic of infrared dynamic scene generation of rocket plume observed by satellite

Fig. 8. Schematic of projection imaging of rocket plume and background from satellite

Fig. 9. Comparison of the plume spectral radiation intensity between calculated and measured

Fig. 10. Average relative error between the results of spectrum correlation algorithm and JHU spectrum library

Fig. 11. Relative error of radiance under different atmospheric models and viewing zenith angles

Fig. 12. Part of radiance images on the rocket trajectory

Fig. 13. Plume length and number of pixels on the rocket trajectory

Fig. 14. Total radiation intensity trend on the rocket trajectory

Fig. 15. Total radiation intensity trend on different trajectories of scene 1

Fig. 16. Total radiation intensity trend on different trajectories of scene 2