Disciplined Range Time Code Translators with Sub-Microsecond Accuracy

Abstract

Serial Time Code signals have long been used to transfer time over various communication channels and media over both short and long distances. Generally, the accuracy of this method of time transfer has been thought of in terms resolution of the code modulation - for instance, 1 second for IRIG-B, 0.1 seconds for IRIG-A, etc. However, in most Time Codes, the carrier frequency is coherent with the modulation and thus provides the means for much greater resolution and accuracy. In the case of the IRIG-B code, with its 1 kHz carrier, time resolution of better than one thousandth of a carrier cycle is now possible, leading the way to sub-microsecond time transfer accuracy. Newly developed precision Time Code Translators with this capability are now being used to improve the accuracy of time transfer throughout several large Missile Test Range timing networks.

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1988
Accession Number
ADA521034

Entities

People

  • Jack Mcnabb
  • Roger Olson
  • Shelby Bass

Tags

Communities of Interest

  • Weapons Technologies

DTIC Thesaurus Topics

  • Accuracy
  • Acquisition
  • Carrier Frequencies
  • Communication Channels
  • Communication Networks
  • Communication Systems
  • Computer Simulations
  • Control Systems
  • Detectors
  • Frequency
  • Microsecond Time
  • Oscillators
  • Phase Detectors
  • Precision
  • Simulations
  • Time Intervals
  • Translators

Fields of Study

  • Physics

Readers

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