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Volume 39 Issue 1
Jan.  2013
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Journal of Beijing University of Aeronautics and Astronautics  > 2013  >  (1): 6-10.
Shen Wentao, Zhu Dingqiang, Shi Liangchen, et al. Optical properties of sun synchronous orbit satellite[J]. Journal of Beijing University of Aeronautics and Astronautics, 2013, (1): 6-10. (in Chinese)
Citation: Shen Wentao, Zhu Dingqiang, Shi Liangchen, et al. Optical properties of sun synchronous orbit satellite[J]. Journal of Beijing University of Aeronautics and Astronautics, 2013, (1): 6-10. (in Chinese)
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Optical properties of sun synchronous orbit satellite

  • School of Astronautics, Beijing University of Aeronautics and Astronautics, Beijing 100191, China

  • Received Date: 19 Sep 2011
  • Publish Date: 31 Jan 2013
    Abstract
  • Optical characteristics of sun synchronous orbit satellite FY-1 were studied by simulation and experimental verification in visible and infrared band. Taken as input in calculation of infrared emission, temperature field on satellite surfaces were solved according to the radiation flux of outer sources. Undulating algorithm was used to describe appearance of the surface material. Reflection from satellite was based on judgments of shadow and bi-directional reflectance distribution function (BRDF) of surface materials. The signatures of FY-1 satellite were calculated and analyzed in infrared and visible band. The results show that infrared luminance of satellite surface is related with temperature. The maximum value is 90 W/(m2·sr) in 8~14 μm band, and 20 W/(m2·sr) in 14~16 μm band. The reflected light intensity show remarkable specula reflect. Maximum value is 2 200 W/sr. The measurement relative error is less than 20%.

     

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