Junjie LI, Jian SUN, Hengxiang ZHAO, Chenguang CHANG, Di FU, Hao ZHAO, Lu BAI, Yutao FENG. Stray Light Characteristics and Suppression in Space-borne Doppler Asymmetric Spatial Heterodyne Interferometer[J]. Acta Photonica Sinica, 2022, 51(11): 1130002
- Acta Photonica Sinica
- Vol. 51, Issue 11, 1130002 (2022)
Fig. 1. Schematic diagram of limb viewing
Fig. 2. Optical system of Doppler asymmetric spatial heterodyne interferometer
Fig. 3. Atmospheric background radiation intensity and airglow intensity
Fig. 4. Atmospheric background radiation reaching the entrance pupil
Fig. 5. Design principle of the baffle
Fig. 6. Baffle geometry
Fig. 7. 3D model of Doppler asymmetric spatial heterodyne interferometer
Fig. 8. Stray light caused by the key surfaces
Fig. 9. Detector shell
Fig. 10. Multistage diffraction of grating
Fig. 11. Diffraction light of the Doppler asymmetric spatial heterodyne interferometer on axis field
Fig. 12. Simulated irradiance map of sensor on axis field
Fig. 13. Reference frame of the Doppler asymmetric spatial heterodyne interferometer
Fig. 14. PST curves of the Doppler asymmetric spatial heterodyne interferometer
Fig. 15. Division of observation area
Fig. 16. Solid angle of CD for O
Fig. 17. Simulated irradiance map of sensor
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Table 1. Orbit parameters and system parameters
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Table 2. Surface property setting in simulation mode
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