Pattern recognition of star constellations for spacecraft applications

Carl Christian Liebe

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    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
    Original languageEnglish
    JournalI E E E Aerospace and Electronic Systems Magazine
    Issue number1
    Pages (from-to)31-39
    Publication statusPublished - 1993

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