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An Assessment of Precision Time and Time Interval Science and Technology (2002) / Chapter Skim
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Appendix D: Glossary
Pages 75-76

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From page 75...
... Clock accuracy Lis] expressed as the worst case time error that can accumulate over specified operating conditions and over a specified duration following clock synchronization (e.g., 10 milliseconds per day)
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From page 76...
... 76 AN ASSESSMENT OF PRECISION TIME AND TIME INTERVAL SCIENCE AND TECHNOLOGY The short-term stability of an oscillator is measured by its Allan deviation, denoted by oy(~, which is the square root of one half the average of the squares of the differences between successive average normalized frequency departure, averaged over the sampling time a, under the assumption that there is no dead time between the averaged normalized frequency departure samples.
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Key Terms

  • maximum permissible
  • specified operating
  • value due
  • frequency due
  • specified parameter

  • load conditions
  • nominal supply
  • clock synchronization
  • specified temperature
  • permissible deviation

  • clock accuracy
  • time error
  • reference implied
  • following clock
  • conditions constant

  • frequency change
  • specified duration
  • duration following
  • operating conditions
  • parameter range

  • temperature range
  • total frequency
  • frequency aging
  • maximum deviation
  • initial value

  • values assigned
  • time standard
  • absolute values
  • supply voltage
  • environmental effects


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