What is PTTI? An Overview of Techniques and Applications of Precise Time and Time Interval

Abstract

Precise Time and Time Interval (PTTI) is an electronic specialty which originated with the availability of high performance oscillators and clocks. The widespread application of PTTI in modern electronic systems is due to the close connection of time measurement with distance measurement, the possiblity of independent coordination of remote actions over extended periods of time, and better utilization of the time and spectrum domain. The great precision of modern clocks must be purchased, however, not only with dollars but also with greater sophistication of the necessary support. Automation can overcome some, but not all of this extra cost. Moreover, if indeed we depend on our clocks more than before, then we also have to assure that system time can be kept with the greatest reliability. This also creates new and unusual requirements for a truly uninterrupted service. The basic concepts of PTTI are discussed.

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1985
Accession Number
ADA494696

Entities

People

  • Gernot M. Winkler

Organizations

  • United States Naval Observatory

Tags

Communities of Interest

  • Space

DTIC Thesaurus Topics

  • Abstracts
  • Accuracy
  • Clocks
  • Electronics
  • Frequency
  • Frequency Standards
  • Global Positioning Systems
  • Hyperbolic Navigation
  • Intervals
  • Loran
  • Measurement
  • Navigation
  • Navigational Equipment
  • Precision
  • Reliability
  • Standards
  • Time Intervals

Readers

  • Educational Psychology
  • Integrated Circuit Design and Technology.
  • Theoretical Analysis.

Technology Areas

  • Microelectronics