Results From Time Transfer Experiments Based on GLONASS P-Code Measurements from RINEX Files

Abstract

The time transfer procedure presently used for the realization of TAI is based on the common view approach, using the CGGTTS data computed by an internal software of the time receivers. We choose here another approach and analyze the raw data available in the RINEX files produced by GPS/GLONASS geodetic receivers. We concentrate our analysis on the use of GLONASS P-code measurements. Because the frequency emitted by each GLONASS satellite is different, the measurements must be corrected for their frequency-dependent receiver hardware delays. These delays can be computed either from the CGGTTS files or directly from the raw P-code data. We show that the first approach is better than the second one. After this correction, time transfer (using the GLONASS P-codes) is realized with a rms of about 2 nanoseconds for a I-day session between two receivers distant of a few hundred of kilometers.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 2001
Accession Number
ADA485529

Entities

People

  • C. Bruyninx
  • F. Roosbeek
  • P. Defraigne

Tags

Communities of Interest

  • Space

DTIC Thesaurus Topics

  • Accuracy
  • Artificial Satellites
  • Calibration
  • Clocks
  • Data Sets
  • Electronic Mail
  • Errors
  • Frequency
  • Frequency Standards
  • Geodesics
  • Information Operations
  • Measurement
  • Observation
  • Observatories
  • Standards
  • Time Interval Counters
  • Time Intervals

Readers

  • Computer Science.
  • Positioning, Navigation, and Timing (PNT) Technology.

Technology Areas

  • Space