• Acta Photonica Sinica
  • Vol. 50, Issue 2, 155 (2021)
Yaxian HOU1、2、3, Rujin ZHAO1、2、3, Yuebo MA1、2、3, Longdong HE1、2、3, and Zifa ZHU1、2、3
Author Affiliations
  • 1Institute of Optics and Electronics of Chinese Academy of Sciences, Chengdu60209, China
  • 2University of Chinese Academy of Sciences, Beijing100049, China
  • 3Key Laboratory of Science and Technology on Space Optoelectronic Precision Measurement, Chinese Academy of Sciences, Chengdu610209, China
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    DOI: 10.3788/gzxb20215002.0212004 Cite this Article
    Yaxian HOU, Rujin ZHAO, Yuebo MA, Longdong HE, Zifa ZHU. An On-orbit Correction Method for High Dynamic APS Star Tracker Based on Adaptive Filtering[J]. Acta Photonica Sinica, 2021, 50(2): 155 Copy Citation Text show less
    Workflow of star sensor
    Fig. 1. Workflow of star sensor
    Simulation star point
    Fig. 2. Simulation star point
    Star centroid extraction process
    Fig. 3. Star centroid extraction process
    Algorithm block diagram
    Fig. 4. Algorithm block diagram
    Star point area and correction matrix diagram
    Fig. 5. Star point area and correction matrix diagram
    Schematic diagram of star centroid moving in continuous frame of image at low speed
    Fig. 6. Schematic diagram of star centroid moving in continuous frame of image at low speed
    The process of obtaining correction matrix C at low speed
    Fig. 7. The process of obtaining correction matrix C at low speed
    Schematic diagram of star centroid moving in continuous frame of image at high speed
    Fig. 8. Schematic diagram of star centroid moving in continuous frame of image at high speed
    Correction results using different methods at different angular velocities
    Fig. 9. Correction results using different methods at different angular velocities
    The 3D map of star point at different angular velocities
    Fig. 10. The 3D map of star point at different angular velocities
    Correction results using different methods at different angular velocities
    Fig. 11. Correction results using different methods at different angular velocities
    Centroid error of star before and after correction under different noise intensity
    Fig. 12. Centroid error of star before and after correction under different noise intensity
    The 3D map of star point under different noise intensity
    Fig. 13. The 3D map of star point under different noise intensity
    Star sensor parameters
    Field of view/(°)20×20
    Exposure time/ms118
    Frame rate/Hz10
    Imager size/pixel21 024×1 024
    Table 1. Parameters of real star sensor
    Yaxian HOU, Rujin ZHAO, Yuebo MA, Longdong HE, Zifa ZHU. An On-orbit Correction Method for High Dynamic APS Star Tracker Based on Adaptive Filtering[J]. Acta Photonica Sinica, 2021, 50(2): 155
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