GLONASS/GPS Time Transfer and the Problem of the Determination of Receiver Delays

Gerrit de Jong, Wlodzimir Lewandowski

Abstract: GPS and recently also Glonass receivers are widely used for navigation When these receivers are used for time and frequency transfer, then all the internal delays and their associated stability become very important. For accurate navigation they are in 'common mode' and only need to be constant during an integration period of less than about one minute. This nanosecond level problem is sometimes not understood by manufacturers and users of those GPS and Glonass timing receivers that were converted from navigation receivers. In the paper this problem is addressed and also the specific Glonass problem caused the Frequency Division Multiplexing (FDM) used instead of Code Division Multiplexing (CDM) used in GPS. Some delay measurement results are presented. The calibration and characterization of these delays is important for the international atomic time scale.
Published in: Proceedings of the 29th Annual Precise Time and Time Interval Systems and Applications Meeting
December 2 - 4, 1997
Sheraton Long Beach Hotel
Long Beach, California
Pages: 229 - 240
Cite this article: de Jong, Gerrit, Lewandowski, Wlodzimir, "GLONASS/GPS Time Transfer and the Problem of the Determination of Receiver Delays," Proceedings of the 29th Annual Precise Time and Time Interval Systems and Applications Meeting, Long Beach, California, December 1997, pp. 229-240.
Full Paper: ION Members/Non-Members: 1 Download Credit
Sign In