The Stability of GPS Carrier-Phase Receivers

Abstract

GPS carrier-phase (CP) time and frequency transfer is a convenient and reliable method to compare distant ground clocks. Short- and long-baseline experiments were performed to ascertain whether CP receivers are sufficiently stable for use in the calibration of Two-Way Satellite Time and Frequency Transfer equipment and the comparison of primary frequency standards. The results were affirmative, demonstrating a time transfer precision of about 100 ps or better in a few days over short baselines and about 100 ps at 1 day and about 300 ps at 5 days over long baselines, provided the receivers hold their calibration, are operated under environmentally controlled conditions, and are connected to phase-stable antenna cable.

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Document Details

Document Type
Technical Report
Publication Date
Nov 01, 2010
Accession Number
ADA544243

Entities

People

  • Lee A. Breakiron

Organizations

  • United States Naval Observatory

Tags

DTIC Thesaurus Topics

  • Accuracy
  • Artificial Satellites
  • Atomic Beam Masers
  • Boundaries
  • Calibration
  • Clocks
  • Discontinuities
  • Errors
  • Frequency
  • Frequency Standards
  • Intervals
  • Measurement
  • Observatories
  • Phase Measurement
  • Precision
  • Standards
  • Time Intervals

Readers

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

Technology Areas

  • Space