Volume 33 Issue 3
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Article Navigation >  Chinese Journal of Space Science  > 2013  >  33(3): 337-345
Yang Xiubin, Jiang Li, Jin Guang. Image matching analysis and experiment of spaceborne camera swayed in the end of orbit life[J]. Chinese Journal of Space Science, 2013, 33(3): 337-345. doi: 10.11728/cjss2013.03.337
Citation: Yang Xiubin, Jiang Li, Jin Guang. Image matching analysis and experiment of spaceborne camera swayed in the end of orbit life[J]. Chinese Journal of Space Science, 2013, 33(3): 337-345. doi: 10.11728/cjss2013.03.337
shu

Image matching analysis and experiment of spaceborne camera swayed in the end of orbit life

doi: 10.11728/cjss2013.03.337 cstr: 32142.14.cjss2013.03.337
  • 1.

    Changchun Institute of Optics, Fine Mechanics and Physics, Changchun 130033

  • 2.

    Changchun University of Science and Technology, Changchun 130023

  • Received Date: 2012-02-09
  • Rev Recd Date: 2012-10-19
  • Publish Date: 2013-05-15
    Abstract
  • Satellite sways matching image is established by analyzing the bottlenecks problem of that the data read-out frequency is too large, and the serious mismatch shift which spaceborne TDI CCD camera might face in the end of orbit life. Based on orbital decay height, the model of swaying match image is designed, the relation between orbit height and angle of the matching image is calculated, quantitative analysis on the feasibility of image motion vector, deviant angle, image distortion are carried out, and then satellite attitude pointing accuracy and stability which meet the requirement of imaging are analyzed through Monte Carlo methods. Finally, physical simulation of TDI CCD camera swaying-imaging is conducted on the mini-type three-axis air bearing table constructed for attitude control simulation of small satellite. Simulation results suggest that the MTF simulation and cross-correlation function of the similarity measurement are both more than 0.85, and satellite swaying to match image can meet the imaging requirement well in the end of the orbit life.

     

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