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In-orbit Stray Light Analysis for Step and Stare observation at Geostationary Orbit
오은송,홍진숙,안기범,조성익,류주형,김석환,Oh, Eunsong,Hong, Jinsuk,Ahn, Ki-Beom,Cho, Seongick,Ryu, Joo-Hyung,Kim, Sug-Whan 한국천문학회 2012 天文學會報 Vol.37 No.2
In the remote sensing researches, the reflected bright source such as snow, cloud have effects on the image quality of wanted signal. Even though those signal from bright source are adjusted in corresponding pixel level with atmospheric correction algorithm or radiometric correction, those can be problem to the nearby signal as one of the stray light source. Especially, in the step and stare observational method which makes one mosaic image with several snap shots, one of target area can affect next to the other snap shot each other. Presented in this paper focused on the stray light analysis from unwanted reflected bright source for geostationary ocean color sensor. The stray light effect for total 16 slot images each other were performed according to 8 band filters. For the realistic simulation, we constructed system modeling with integrated ray tracing technique which realizes the same space time in the remote sensing observation among the Sun, the Earth, and the satellite. Computed stray light effect in the results of paper demonstrates the distinguishable radiance value at the specific time and space.