Hao Wang, Wenpo Ma, Qian Zhang, Libing Jin, Siheng Wang, Ming Chen. Modeling and analysis of earth stray radiation of earthlimb/deep space background detection system[J]. Infrared and Laser Engineering, 2023, 52(10): 20230041
- Infrared and Laser Engineering
- Vol. 52, Issue 10, 20230041 (2023)
Fig. 1. Schematic diagram of calculation of earth stray radiation
Fig. 2. Calculation flow of the earth stray radiation
Fig. 3. Schematic diagram of latitude calculation
Fig. 4. Solving geometric models with longitude
Fig. 5. The area where the surface radiation can reach the satellite at different satellite positions
Fig. 6. Earth spherical crown region and its solar zenith angle at different times. （a） 09-23 9:00; （b） 09-23 12:00;（c） 9-23 15:00; （d） 12-22 9:00; （e） 12-22 12:00; （f） 12-22 15:00
Fig. 7. Curve of point source transmission
Fig. 8. Earth stray radiation analysis in the visible light band. (a) Stray radiation curve at different azimuth angles; (b) Stray radiation curve at different elevation angles; (c) Stray radiation curve at different nadir positions
Fig. 9. Earth stray radiation analysis in the long wave infrared band. (a) Stray radiation curve at different azimuth angles; (b) Stray radiation curve at different elevation angles; (c) Stray radiation curve at different nadir positions
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