Volume 39 Issue 6
Jun.  2013
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Gong Hui, Tian Guoliang, Yu Tao, et al. Cross calibration of CCD cameras in HJ satellite based on the image simulation[J]. Journal of Beijing University of Aeronautics and Astronautics, 2013, (6): 818-822. (in Chinese)
Citation: Gong Hui, Tian Guoliang, Yu Tao, et al. Cross calibration of CCD cameras in HJ satellite based on the image simulation[J]. Journal of Beijing University of Aeronautics and Astronautics, 2013, (6): 818-822. (in Chinese)

Cross calibration of CCD cameras in HJ satellite based on the image simulation

  • Received Date: 27 Jun 2012
  • Publish Date: 30 Jun 2013
  • As to two CCD cameras in the same HJ-1 satellite, a new cross calibration method was proposed based on image simulation. Through the method, un-calibrated CCD without obtaining the image of a target was cross-calibrated by calibrated CCD covering the target by analyzing the mathematical relation of digital counts between two CCD cameras. The calibration coefficients of A2CCD and B2CCD in October 2008 were achieved with the method and validated by using field experiment data of Gongger test site and MODIS data of Dunhuang test site. Principal error sources of the method were analyzed. The results show that the method has high precision and reliability. This method can increase the frequency of calibration besides ensuring the precision of the calibration.

     

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