Performance and Characterization of U.S. Naval Observatory Clocks

Abstract

Six years of U.S. Naval Observatory clock data are analyzed to determine the optimal data filter length and the amplitude and frequency of occurrence of statistically significant changes in the frequencies and frequency drifts of cesium-beam frequency standards and hydrogen masers by means of relative and correlation-corrected N-cornered-hat analyses of the frequency stabilities of postprocessed mean timescales. The effects of temperature and humidity on cesium and maser frequencies and drifts are also investigated.

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Document Details

Document Type
Technical Report
Publication Date
Nov 01, 2000
Accession Number
ADA484883

Entities

People

  • Demetrios N. Matsakis
  • Lee A. Breakiron

Organizations

  • United States Naval Observatory

Tags

Communities of Interest

  • Biomedical
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Atomic Beam Masers
  • Clocks
  • Coefficients
  • Data Acquisition
  • Failure Mode And Effect Analysis
  • Frequency
  • Frequency Standards
  • Humidity
  • Hydrogen
  • Masers
  • Measurement
  • Observatories
  • Phase Measurement
  • Standards
  • Temperature Coefficients
  • Temperature Gradients
  • Time Intervals

Fields of Study

  • Physics

Readers

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