Computer Science
Scientific paper
May 1989
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989cosre..26..734i&link_type=abstract
Cosmic Res., Vol. 26, No. 6, p. 734 - 741
Computer Science
Artificial Satellites: Navigation
Scientific paper
The authors investigate special features of autonomous navigation based on optical sighting of nonuniform sections of a planet surface and sections of the star sky near the horizon. By analyzing the images the satellite can choose planetary reference points and known stars, determine the direction of the lines of sight of reference points in an inertial coordinate system and the elevation of the stars above the planet horizon, and then determine the orbital elements of the spacecraft (after statistical processing of the navigation measurements). For near-circular orbits of an artificial satellite close to the Earth the authors give the navigation accuracy and the convergence characteristics of the iteration process of determining the spacecraft orbit. A comparison is made with cases where only the star elevation above the horizon or only the sighting angles of reference points are measured.
Ivashkin Vyacheslav V.
Zadykhina L. N.
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