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GNSS interoperability: offset between reference time scales and timing biases*

Ricardo Píriz1, Álvaro Mozo García1, Guillermo Tobías1, Virginia Fernández1, Patrizia Tavella2, Ilaria Sesia2, Giancarlo Cerretto2 and Jörg Hahn3

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Within the GIOVE Mission (GIOVE-M), two experimental satellites called GIOVE-A and GIOVE-B have been launched by the European Space Agency. This paper analyses the different issues involved in GPS/GIOVE interoperability for positioning and timing, including GGTO (the GPS to Galileo time offset) and timing biases, and presents practical experience and results related to EGGTO, the GIOVE-M experimental version of GGTO broadcast within the GIOVE navigation messages.


Footnote
*  This paper is based on the presentation given at the ENC GNSS 2008 in Toulouse, France, with the title GPS/GIOVE Interoperability: GGTO and Timing Biases.
PACS

84.40.Xb Telemetry: remote control, remote sensing; radar

84.40.Ua Telecommunications: signal transmission and processing; communication satellites

06.30.Ft Time and frequency

Subjects

Electronics and devices

Instrumentation and measurement

Dates

Issue 6 (December 2008)

Received 15 July 2008

Published 5 December 2008



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