A software system for a star imager for online satellite attitude determination is described. The system works with a single standard commercial CCD camera with a high aperture lens and an onboard star catalog. It is capable of both an initial coarse 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 image aims at an accuracy better than 2 arc sec with a processing time of less than a few seconds. The star imager has been developed for the Danish Oersted satellite.<>
Pattern recognition of star constellations for spacecraft applications
IEEE Aerospace and Electronic Systems Magazine ; 7 , 6 ; 34-41
01.06.1992
657488 byte
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
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