18 October 2016 Modeling the coupling effect of jitter and attitude control on TDICCD camera imaging
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Abstract
The vibration has an important influence on space-borne TDICCD imaging quality. It is generally aroused by an interaction between satellite jitter and attitude control. Previous modeling for this coupling relation is mainly concentrating on accurate modal analysis, transfer path and damping design, etc. Nevertheless, when controlling attitude, the coupling terms among three body axes are usually ignored. This is what we try to study in this manuscript. Firstly, a simplified formulation dedicated to this problem is established. Secondly, we use Dymola 2016 to execute the simulation model profiting Modelica synchronous feature, which has been proposed in recent years. The results demonstrate that the studied effect can introduce additional oscillatory modes and lead the attitude stabilization process slower. In addition, when fully stabilized, there seems time-statistically no difference but it still intensifies the motion-blur by a tiny amount. We state that this effect might be worth considering in image restoration.
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Yulun Li, Yulun Li, Zhen Yang, Zhen Yang, Xiaoshan Ma, Xiaoshan Ma, Wei Ni, Wei Ni, } "Modeling the coupling effect of jitter and attitude control on TDICCD camera imaging", Proc. SPIE 10004, Image and Signal Processing for Remote Sensing XXII, 100041R (18 October 2016); doi: 10.1117/12.2241948; https://doi.org/10.1117/12.2241948
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