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arXiv · 2507.17560

Evaluation of centroiding algorithms for an autonomous star tracker

Marcio Afonso Arimura Fialho
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Abstract

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.

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Marcio Afonso Arimura Fialho. 2025-07-23. Evaluation of centroiding algorithms for an autonomous star tracker. https://arxiv.org/abs/2507.17560

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