Fig. 1. Infrared multispectral camera system diagram

Fig. 2. Synchronous drive control circuit architecture diagram

Fig. 3. Filter wheel structure and dimensions diagram

Fig. 4. Simultaneous imaging design accuracy diagram

Fig. 5. Cascaded dual closed-loop structure diagram

Fig. 6. Encoder quadruple frequency technology analysis diagram

Fig. 7. Trigger signal waveform diagram

Fig. 8. Synchronous imaging position error diagram

Fig. 9. Hall detection angle lag error analysis diagram

Fig. 10. Synchronous imaging accuracy test site

Fig. 11. Filter wheel strip number physical picture

Fig. 12. Synchronous imaging experimental results based on Hall sensor

Fig. 13. Synchronous imaging experimental results based on encoder

Fig. 14. The first image circle center (Hall)

Fig. 15. Maximum error image circle center (Hall)

Fig. 16. The first image circle center (encoder)

Fig. 17. Maximum error image circle center (encoder)

Fig. 18. Filter wheel physical image

Fig. 19. Infrared multispectral camera overall physical imag

Fig. 20. Infrared multispectral simultaneous imaging experiment results