A software system for a star imager for on-line satellite attitude determination is described. The system works with a single standard commercial CCD-camera with a high aperture lens and an onboard star catalogue. It is capable of both an initial course attitude determination without any prior knowledge of the satellite orientation and a high-accuracy attitude determination based on prediction and averaging of several identified star constellations. In the high accuracy mode the star imager aims at an accuracy better than 2 arc sec with a processing time of less than a few seconds. The star imager is developed for the Danish microsatellite Oersted.<>
Pattern recognition of star constellations for spacecraft applications
IEEE Aerospace and Electronic Systems Magazine ; 8 , 1 ; 31-39
01.01.1993
681018 byte
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
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