Star-field identification for autonomous attitude determination

Details Star-field identification for autonomous attitude determination Star-field identification for autonomous attitude determination

Jan 1995

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995jgcd...18...61s&link_type=abstract

Journal of Guidance, Control, and Dynamics (ISSN 0731-5090), vol. 18, no. 1, p. 61-65

Physics

1

Ccd Star Tracker, Imaging Techniques, Pattern Recognition, Satellite Attitude Control, Star Distribution, Algorithms, Attitude (Inclination), Cameras, Field Of View, Image Processing

Scientific paper

A six-feature all-sky star-field identification algorithm has been developed for autonomous attitude determination. The minimum identifiable star pattern element consists of an oriented star triplet defined by three stars, their celestial coordinates, and their visual magnitudes. This algorithm has been integrated with a charge-coupled-device- (CCD-) based imaging camera and tested in an observatory environment. The autonomous intelligent camera identifies in real time any star field without a priori knowledge. Observatory tests on star fields with this intelligent camera are described.

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