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Article Navigation >  Journal of University of Electronic Science and Technology of China  > 2010  >  39(6): 880-885

WANG Hong-tao, LUO Chang-zhou, WANG Yu, ZHAO Shu-fang. Star Sensor Model Parametric Analysis and Calibration Method Study[J]. Journal of University of Electronic Science and Technology of China, 2010, 39(6): 880-885. doi: 10.3969/j.issn.1001-0548.2010.06.016
Citation: WANG Hong-tao, LUO Chang-zhou, WANG Yu, ZHAO Shu-fang. Star Sensor Model Parametric Analysis and Calibration Method Study[J]. Journal of University of Electronic Science and Technology of China, 2010, 39(6): 880-885. doi: 10.3969/j.issn.1001-0548.2010.06.016
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Star Sensor Model Parametric Analysis and Calibration Method Study

doi: 10.3969/j.issn.1001-0548.2010.06.016
  • 1.

    School of Automation,Beijing Institute of Technology Haidian Beijing 100081;

  • 2.

    Beijing Institute of Control and Electronic Technology Haidian Beijing 100038

  • Received Date: 2009-03-01
  • Rev Recd Date: 2009-06-03
  • Publish Date: 2010-12-15
  • An actual measurement model of star sensor is established by geometrical method. The effect of relative factors to the actual imaging location of navigation star is considered into the ideal measurement model of star sensor. These factors include focal length deviation, optical lens distortion, image sensor tilt, image sensor rotate, primary point bias, etc. The affecting law of the factors on angle-measuring accuracy of star sensor is analyzed. The star sensor is calibrated through the measured calibration data and the model parameters solved by least square method. The experimental results show that the angle measurement accuracy of x and y directions is 1.6″ and 2.3″ after calibration, but 19.6″ and 17.8″ before calibration.
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  • 1. 

    沈阳化工大学材料科学与工程学院 沈阳 110142

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Star Sensor Model Parametric Analysis and Calibration Method Study

doi: 10.3969/j.issn.1001-0548.2010.06.016
  • 1. School of Automation,Beijing Institute of Technology Haidian Beijing 100081;
  • 2. Beijing Institute of Control and Electronic Technology Haidian Beijing 100038
  • Received Date: 2009-03-01
  • Rev Recd Date: 2009-06-03
  • Publish Date: 2010-12-15

Abstract: An actual measurement model of star sensor is established by geometrical method. The effect of relative factors to the actual imaging location of navigation star is considered into the ideal measurement model of star sensor. These factors include focal length deviation, optical lens distortion, image sensor tilt, image sensor rotate, primary point bias, etc. The affecting law of the factors on angle-measuring accuracy of star sensor is analyzed. The star sensor is calibrated through the measured calibration data and the model parameters solved by least square method. The experimental results show that the angle measurement accuracy of x and y directions is 1.6″ and 2.3″ after calibration, but 19.6″ and 17.8″ before calibration.

WANG Hong-tao, LUO Chang-zhou, WANG Yu, ZHAO Shu-fang. Star Sensor Model Parametric Analysis and Calibration Method Study[J]. Journal of University of Electronic Science and Technology of China, 2010, 39(6): 880-885. doi: 10.3969/j.issn.1001-0548.2010.06.016
Citation: WANG Hong-tao, LUO Chang-zhou, WANG Yu, ZHAO Shu-fang. Star Sensor Model Parametric Analysis and Calibration Method Study[J]. Journal of University of Electronic Science and Technology of China, 2010, 39(6): 880-885. doi: 10.3969/j.issn.1001-0548.2010.06.016
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