Progress in Carrier Phase Time Transfer

Abstract

The progress of the joint Pilot Project for time transfer, formed by the lnternational GPS Service (IGS) and the Bureau International des Poids et Mesures (BIPM), was recently reviewed. Three notable milestones were set. 1) The IGS will implement, at least in a test mode, an internally realized time scale based on an integration of combined frequency standards within the IGS network. This will eventually become the reference time scale for all IGS clock products (instead of the current GPS broadcast time). 2) A new procedure for combined receiver and satellite clock products will be implemented officially in November 2000. Receiver clocks are an entirely new product of the IGS. 3) The BIPM will coordinate an effort to calibrate all Ashtech Z12-T (and possibly other) receivers suitable for time transfer applications, either differentially or absolutely. Progress reports will be presented publicly in the spring 2001.

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Document Details

Document Type
Technical Report
Publication Date
May 14, 2001
Accession Number
ADA390474

Entities

People

  • Felicitas Arias
  • Gerard Petit
  • Jim Ray
  • Thomas Schildknecht
  • Tim Springer

Organizations

  • United States Naval Observatory

Tags

Communities of Interest

  • Space

DTIC Thesaurus Topics

  • Abstracts
  • Accuracy
  • Artificial Satellites
  • Availability
  • Classification
  • Clocks
  • Electronic Mail
  • Frequency
  • Frequency Standards
  • Global Navigation Satellite Systems
  • Global Positioning Systems
  • Measurement
  • Monitoring
  • Navigation
  • Navigation Satellites
  • Observatories
  • Standards

Readers

  • Defense Acquisition Program Management
  • Positioning, Navigation, and Timing (PNT) Technology.

Technology Areas

  • Space