Time and Frequency Transfer Combining GLONASS and GPS Data

Abstract

Measurements from Global Navigation Satellite Systems (GNSS) have been used since the eighties to perform precise and accurate Time and Frequency Transfer (TFT). Two main approaches are used presently: the Common View or All in View based on the Common GPS GLONASS Time Transfer Standard (CGGTTS) and the Precise Point Positioning (PPP). Concerning the CGGTTS approach, in order to allow the use of GLONASS data from geodetic-type receivers providing only raw data in RINEX format, the R2CGGTTS software developed initially for GPS at the Royal Observatory of Belgium (ROB) was updated. The GLONASS navigation files are used for the determination of satellite clocks and positions, and the computation procedure to get the CGGTTS data from the pseudorange measurements is applied similarly as for the GPS satellites.

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Document Details

Document Type
Technical Report
Publication Date
Nov 01, 2010
Accession Number
ADA639367

Entities

People

  • A. Harmegnies
  • Pascale Defraigne
  • Quentin Baire

Tags

Communities of Interest

  • Space

DTIC Thesaurus Topics

  • Artificial Satellites
  • Calibration
  • Carrier Frequencies
  • Clocks
  • Computations
  • Frequency
  • Global Navigation Satellite Systems
  • Measurement
  • Navigation
  • Navigation Satellites
  • Numerical Integration
  • Observation
  • Observatories
  • Phase Measurement
  • Satellite Orbits
  • Standards
  • Time Intervals

Readers

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

Technology Areas

  • Space