Xin-tao WANG, Jian-hua ZHENG, Ming-tao LI. Analysis of signal-to-noise ratio for space-based optical surveillance of asteroids[J]. Optics and Precision Engineering, 2021, 29(12): 2763
- Optics and Precision Engineering
- Vol. 29, Issue 12, 2763 (2021)
Fig. 1. Solar spectrum radiant exitance
Fig. 2. Irradiance of Lambert disced radiator
Fig. 3. Spectrum radiant exitance of black body
Fig. 4. Brightness in zodiacal light
Fig. 5. Brightness in galactic light
Fig. 6. Orbits of target asteroid and visible telescope deployed on Earth-leading heliocentric orbit
Fig. 7. Distance of the target asteroid relative to the visible telescope deployed on Earth-leading heliocentric orbit
Fig. 8. SNR of target asteroid relative to visible telescope deployed on Earth-leading heliocentric orbit
Fig. 9. Apparent magnitude of target asteroid relative to visible telescope deployed on Earth-leading heliocentric orbit
Fig. 10. Maximum surveillance distance of visible telescope deployed on Sun-Earth L1 point
Fig. 11. Maximum surveillance distance of visible telescope deployed on Earth-leading heliocentric orbit
Fig. 12. SNR and apparent magnitude vs . asteroid's visual albedo
Fig. 13. SNR and apparent magnitude vs . asteroid's temperature
Fig. 14. SNR and apparent magnitude vs . asteroid's visual emissivity
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Table 1. 转换系数在不同波长处的取值
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Table 2. Orbital elements of target asteroid
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Table 3. Physical parameters of target asteroid
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Table 4. Performance parameters of telescope
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Table 5. Performance parameters of detector
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