Fig. 1. Diagram of instrument system composition

Fig. 2. Diagram of on-orbit work

Fig. 3. Schematic diagram of DPC imaging system

Fig. 4. Schematic diagram of optical system

Fig. 5. 865 nm polarized effect of lens

Fig. 6. 910 nm polarized effect of lens

Fig. 7. Schematic diagram of performance measurement experiment setup

Fig. 8. Measurement range of experiment

Fig. 9. Original image of DPC

Fig. 10. DOLP image of DPC

Fig. 11. Flow chart of data processing

Fig. 12. Diffusion function curve

Fig. 13. 2D diffusion function diagram

Fig. 14. Global coefficient matrix data. (a) Region (6,6); (b) region (7,8)

Fig. 15. Stray light correction. (a) RGB image; (b) corrected data at wavelength of 865 nm; (c) ratio of stray light signal to effective data

Fig. 16. DPC data preview

Fig. 17. Polarization change curve of sunglint

Fig. 18. Angle sensitivity curve

Fig. 19. Data at wavelength of 865 nm. (a) Radiation intensity; (b) degree of polarization; (c) sunglint angle; (d) scattering angle

Fig. 20. Spectral response curve of 865 nm channel

Fig. 21. Polarization analysis of sunglint. (a) Simulation data; (b) DPC data; (c) deviation distribution; (d) polarization comparison scatter plot