• Opto-Electronic Engineering
  • Vol. 37, Issue 12, 11 (2010)
SHI Jun-xia1、2、*, XUE Xu-cheng1, and GUO Yong-fei1
Author Affiliations
  • 1[in Chinese]
  • 2[in Chinese]
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    DOI: Cite this Article
    SHI Jun-xia, XUE Xu-cheng, GUO Yong-fei. Effect of Satellite Vibration on Imaging Quality of TDICCD Camera and Compensation Method[J]. Opto-Electronic Engineering, 2010, 37(12): 11 Copy Citation Text show less

    Abstract

    In order to realize image stabilization on vibrated image captured by an airborne TDICCD, the effect of satellite vibration on imaging quality of TDICCD is analyzed, and a method on compensation to satellite vibration is proposed. First, the principle of a TDICCD is introduced, and the characteristic that a TDICCD differs from others is that a TDICCD is especially sensitive to vibration. Then, the effect of vibration on a TDICCD camera is analyzed by taking the MTF as an evaluation standard. As an emphasis, the relationship between vibration and TDICCD integration stage is researched. Finally, by using the satellite vibration data, the effect of satellite vibration on TDICCD is calculated. Results indicate that as the integration stage increases, MTF decreases greatly. When the integration stage increases to 54, the MTF decreases to below 0.95. Based on the analysis, vibration detecting method based on high-speed CCD and vibration compensating method based on vibration mirror are proposed to compensate the influence of satellite vibration. Aimed at the former,an improved gray projection algorithm is proposed to detect the parameters of satellite vibration, and the error is not more than half a pixel.
    SHI Jun-xia, XUE Xu-cheng, GUO Yong-fei. Effect of Satellite Vibration on Imaging Quality of TDICCD Camera and Compensation Method[J]. Opto-Electronic Engineering, 2010, 37(12): 11
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