Volume 6 Issue 5
Oct.  2013
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XUE Xu-cheng, FU Yao, HAN Cheng-shan. Confirmation of satellite attitude stabilization for TDI CCD camera[J]. Chinese Optics, 2013, 6(5): 767-772. doi: 10.3788/CO.20130605.0767
Citation: XUE Xu-cheng, FU Yao, HAN Cheng-shan. Confirmation of satellite attitude stabilization for TDI CCD camera[J]. Chinese Optics, 2013, 6(5): 767-772. doi: 10.3788/CO.20130605.0767

Confirmation of satellite attitude stabilization for TDI CCD camera

  • Received Date: 23 Jul 2013
  • Rev Recd Date: 08 Sep 2013
  • Publish Date: 10 Oct 2013
  • To solve the image degradation caused by satellite platform vibration and to improve TDI CCD image quality, the range of satellite attitude stabilization and its effect were analyzed. First, the dependence of the satellite platform vibration on the TDI CCD image quality was discussed. Then, equations which gave the relationship between image motion and attitude stabilization were derived. Finally, it was concluded that the satellite attitude stabilization was relevant to orbit altitudes and integral stages. The experiment results indicate that the higher the orbit altitude is and the bigger the integral stages are, the more rigorous the requirement of satellite attitude stabilization is. From obtained data, it is demonstrated that when the orbit altitude changes from 200 km to 1 000 km, the requirement of satellite attitude stabilization need to improve from 0.037 7 to 0.006 35 rad/s. Meanwhile, when the integral stages change from 1 to 100, the requirement of satellite attitude stabilization need to be improved from 0.014 to 0.000 14 rad/s. The work in this paper confirms the relationships of satellite attitude stabilization, orbit altitudes and integral stages, which contributes to improve TDI CCD image quality.

     

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