On an Improved Method of Resolving the Frequency Difference Between Two Very Accurate and Stable Frequency Signals

Abstract

With the advance in accuracy and stability of modern atomic clocks, the need for a very precise method of detecting instabilities in their signals has arisen. For example, with two hydrogen masers with a 1 in 10(15) frequency difference, the drift rate of phase due to the frequency difference will be 1fs per second or 3.6ps per hour. No ordinary universal counter would be capable of resolving the difference between the two signals.

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1999
Accession Number
ADA491154

Entities

People

  • Clive Green
  • Richard Percival

Tags

Communities of Interest

  • C4I
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Accuracy
  • Amplifiers
  • Atomic Beam Masers
  • Atomic Clocks
  • Calibration
  • Climate Change
  • Clocks
  • Counting Methods
  • Frequency
  • Frequency Standards
  • Measurement
  • Multiplication Factor
  • Oscillators
  • Standards
  • Statistical Analysis
  • Time Interval Counters
  • Time Intervals

Readers

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