GPS-assisted GLONASS orbit determination |
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| Authors: | D Kuang Y E Bar-Sever W I Bertiger K J Hurst J F Zumberge |
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| Institution: | (1) Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109, USA e-mail: da.kuang@jpl.nasa.gov; Tel.: +1-818 354-8332; Fax: +1-818-393-4965, US |
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| Abstract: | Using 1 week of data from a network of GPS/GLONASS dual-tracking receivers, 15-cm accurate GLONASS orbit determination is
demonstrated with an approach that combines GPS and GLONASS data. GPS data are used to define the reference frame, synchronize
receiver clocks and determine troposphere delay for the GLONASS tracking network. GLONASS tracking data are then processed
separately, with the GPS-defined parameters held fixed, to determine the GLONASS orbit. The quality of the GLONASS orbit determination
is currently limited by the size and distribution of the tracking network, and by the unavailability of a sufficiently refined
solar pressure model. Temporal variations in the differential clock bias of the dual-tracking receivers are found to have
secondary impact on the orbit determination accuracy.
Received: 5 January 2000 / Accepted: 15 February 2001 |
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| Keywords: | : GPS – GLONASS – Orbit |
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