Abstract
The basic principle of star sensor and major preprocessing methods of star image were introduced. The traditional centroid method, threshold centroid method, squared centroid method and Gauss curve fitting method were applied to star locating of star image for star sensor. The simulation results show that threshold centroid method is most appropriate for star locating. The influences of noise level, filter processing and threshold choosing on the precision of star locating were simulated. The star locating of the actual star image can be done by threshold centroid method.
| Original language | English |
|---|---|
| Pages (from-to) | 812-815 |
| Number of pages | 4 |
| Journal | Beijing Hangkong Hangtian Daxue Xuebao/Journal of Beijing University of Aeronautics and Astronautics |
| Volume | 29 |
| Issue number | 9 |
| State | Published - Sep 2003 |
Keywords
- Star image
- Star locating
- Star sensor
- Threshold value
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