Evaluation of centroiding algorithms for an autonomous star tracker
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arXiv
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| Format: | Preprint |
| Published: |
2025
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| _version_ | 1866908462346141696 |
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| author | Fialho, Marcio Afonso Arimura |
| author_facet | Fialho, Marcio Afonso Arimura |
| contents | This work presents numerical results of a computer simulation performed with six centroiding algorithms targeting a star tracker in development at INPE, including readout noise and considering a Gaussian point spread function. Five of the tested algorithms are light-weight centroiding algorithms with low computational costs. These were compared to a shape fitting algorithm based on the lsqnonlin function available in Matlab and GNU Octave. The algorithms studied here are also applicable for astrometry and adaptive optics. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2507_17560 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Evaluation of centroiding algorithms for an autonomous star tracker Fialho, Marcio Afonso Arimura Instrumentation and Methods for Astrophysics Instrumentation and Detectors This work presents numerical results of a computer simulation performed with six centroiding algorithms targeting a star tracker in development at INPE, including readout noise and considering a Gaussian point spread function. Five of the tested algorithms are light-weight centroiding algorithms with low computational costs. These were compared to a shape fitting algorithm based on the lsqnonlin function available in Matlab and GNU Octave. The algorithms studied here are also applicable for astrometry and adaptive optics. |
| title | Evaluation of centroiding algorithms for an autonomous star tracker |
| topic | Instrumentation and Methods for Astrophysics Instrumentation and Detectors |
| url | https://arxiv.org/abs/2507.17560 |