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Proceedings Paper

A limb atmospheric radiance inversion method based on a sun-synchronous orbit satellite
Author(s): Yucui Dong; Fansheng Chen; Yun Wang; Xiaofeng Su; Wei Wang
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Paper Abstract

It is always affected by the influence of limb atmosphere when the space-based remote sensing systems detect spatial targets using limb observation mode. In this paper, the characteristics of the limb atmosphere and the impact of limb atmosphere to target observation are theoretical modeled. Based on the model, we propose an algorithm to compute the vertical structure of atmosphere radiance through the image of limb atmosphere as well as the star image. Realization of atmosphere radiance under similar situation can then be computed based on inversion algorithm proposed in the paper. The stellar images of different areas including areas over Antarctic and Equator are captured by in-orbit space borne camera. The method of how to inverse from the gray image to atmosphere limb radiance in engineering applications is described in detail and statistical analysis of the result of inversion to limb atmosphere radiance is conducted whose trend is consistent with simulation result of MODTRAN which increases at lower altitude to a peak value then drop to zero slowly while there are two peaks in the statistical radiance distribution curves illustrating the polar light over Antarctic.

Paper Details

Date Published: 13 April 2015
PDF: 11 pages
Proc. SPIE 9522, Selected Papers from Conferences of the Photoelectronic Technology Committee of the Chinese Society of Astronautics 2014, Part II, 95222C (13 April 2015); doi: 10.1117/12.2180861
Show Author Affiliations
Yucui Dong, Shanghai Institute of Technical Physics (China)
Univ. of Chinese Academy of Sciences (China)
Fansheng Chen, Shanghai Institute of Technical Physics (China)
Yun Wang, Shanghai Institute of Technical Physics (China)
Xiaofeng Su, Shanghai Institute of Technical Physics (China)
Univ. of Chinese Academy of Sciences (China)
Wei Wang, Shanghai Institute of Technical Physics (China)
Univ. of Chinese Academy of Sciences (China)


Published in SPIE Proceedings Vol. 9522:
Selected Papers from Conferences of the Photoelectronic Technology Committee of the Chinese Society of Astronautics 2014, Part II
Xiangwan Du; Jennifer Liu; Dianyuan Fan; Jialing Le; Yueguang Lv; Jianquan Yao; Weimin Bao; Lijun Wang, Editor(s)

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