Fig. 1. (a) Overall system structure diagram and (b) sensor internal structure diagram of AVIRIS-NG

Fig. 2. Optical system of AVIRIS-NG

Fig. 3. Spectral response range of detectors with different materials

Fig. 4. On-board real-time methane mapping of AVIRIS-NG

Fig. 5. SYSIPHE on Do228

Fig. 6. Optical system of Sieleters

Fig. 7. AMMIS

Fig. 8. Optical system of each band：（a）VNIR/SWIR，（b）LWIR，（c）UV

Fig. 9. Classification and identification map of ground elements

Fig. 10. The exterior structure of CA-295

Fig. 11. An imaging diagram in the oblique mode

Fig. 12. Zonal gradient forward motion compensation diagram on focal plane

Fig. 13. Structure diagram of TIER II Plus

Fig. 14. Main motion control loop of TIER II Plus

Fig. 15. The exterior structure of（a）SIRI-4 and（b）MAMS

Fig. 16. System structure diagram of SIRI-4

Fig. 17. SIRI-4 is integrated on the PAV-80 platform

Fig. 18. （a）-（i）Enhanced infrared images of SIRI-4 under different tidal conditions

Fig. 19. Image resolution comparison of thermal drainage detection：（a）infrared image details of SIRI-4，（b）infrared image details of MAMS