Time Stability and Electrical Delay Comparison of Dual-Frequency GPS Receivers

Abstract

Some dual-frequency GPS receivers have been used for time comparisons for several years. They are now standard equipment for operational units in time laboratories. Evaluation of these receivers is necessary to ensure accuracy and long-term stability of time links used in TAI and in precise time station (PTS) dedicated to GALILEO. Currently, the most widely approach used to determine the electrical delay and the time stability of these devices is the differential method developed by the BIPM. Another solution is the calibration and the evaluation of receivers in using an artificial signal simulated by a GNSS signal simulator. This method was first defined and performed by Colorado University and put into operations by the Naval Research Laboratory (NRL). Since 2005, CNES (French Space Agency) has been developing this method with a similar approach.

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Document Details

Document Type
Technical Report
Publication Date
Nov 01, 2009
Accession Number
ADA518025

Entities

People

  • A. Proia
  • G. Cibiel
  • L. Yaigre

Organizations

  • CNES

Tags

DTIC Thesaurus Topics

  • Accuracy
  • Acquisition
  • Artificial Satellites
  • Calibration
  • Clocks
  • Frequency
  • Global Navigation Satellite Systems
  • Global Positioning Systems
  • Laboratory Equipment
  • Measurement
  • Military Research
  • Navigation
  • Navigation Satellites
  • Phase Measurement
  • Simulators
  • Time Interval Counters
  • Time Intervals

Readers

  • Positioning, Navigation, and Timing (PNT) Technology.
  • Technical Research and Report Writing.

Technology Areas

  • Space