Near-Term Time Transfer Technologies and International Atomic Time (TAI)

Abstract

While there are many forms of time-transfer, the most precise long-distance forms currently used for the generation of TAI and Coordinated Universal Time (UTC) involve either GPS or Two Way Satellite Time Transfer (TWSTT). This paper will give a brief description of their current and future capabilities, with emphasis on their uncertainties. Some of these uncertainties are due to inherent modeling or receiver instabilities, while others can be reduced through temperature and humidity stabilization, electronic impedance matching, and multipath minimization. The residual time-transfer uncertainties directly affect the uncertainties in each individual laboratory's realization of UTC.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 2005
Accession Number
ADA434482

Entities

People

  • Demetrios N. Matsakis

Organizations

  • United States Naval Observatory

Tags

Communities of Interest

  • Space

DTIC Thesaurus Topics

  • Abstracts
  • Accuracy
  • Artificial Satellites
  • Demographic Cohorts
  • Experimental Data
  • Information Operations
  • Observation
  • Observatories
  • Precision
  • Standards
  • Uncertainty

Readers

  • Control Systems Engineering.
  • Positioning, Navigation, and Timing (PNT) Technology.

Technology Areas

  • Microelectronics
  • Space