Volume 29 Issue 9
Sep.  2003
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Wei Xinguo, Zhang Guangjun, Jiang Jieet al. Subdivided locating method of star image for star sensor[J]. Journal of Beijing University of Aeronautics and Astronautics, 2003, 29(9): 812-815. (in Chinese)
Citation: Wei Xinguo, Zhang Guangjun, Jiang Jieet al. Subdivided locating method of star image for star sensor[J]. Journal of Beijing University of Aeronautics and Astronautics, 2003, 29(9): 812-815. (in Chinese)

Subdivided locating method of star image for star sensor

  • Received Date: 05 Sep 2002
  • Publish Date: 30 Sep 2003
  • The basic principle of star sensor and major pre-processing methods of star image were introduced. The traditional centroid, threshold centroid, squared centroid and Gauss curve fitting methods were applied into star locating of star image for star sensor. The simulation was carried out sufficiently. The simulation results show that threshold centroid is the most appropriate method for star locating. Simulation in the influences of noise level, filter processing and threshold choosing on the precision of star locating were made. The star locating of the actual star image was done based on threshold centroid, and the satisfying result was obtained.

     

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