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IEEE 1139-2022

IEEE Standard Definitions of Physical Quantities for Fundamental Frequency and Time Metrology--Random Instabilities

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IEEE 1139-2022

IEEE Standard Definitions of Physical Quantities for Fundamental Frequency and Time Metrology--Random Instabilities

PUBLISH DATE 2022

PAGES 60

IEEE 1139-2022

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Revision Standard - Active. Methods of describing random instabilities of importance to frequency and time metrology are covered in this standard. Quantities covered include frequency, amplitude, and phase instabilities; spectral densities of frequency, amplitude, and phase fluctuations; and time-domain deviations of frequency fluctuations. In addition, recommendations are made for the reporting of measurements of frequency, amplitude, and phase instabilities, especially with regard to the recording of experimental parameters, experimental conditions, and calculation techniques.

This standard covers the fundamental metrology for describing random instabilities of importance to frequency and time metrology. Quantities covered include frequency, amplitude, and phase instabilities; spectral densities of frequency, amplitude, and phase fluctuations; and time-domain deviations of frequency and phase fluctuations. In addition, recommendations are made for the reporting of measurements of frequency, amplitude, and phase instabilities, especially with regard to calculation techniques, but also including experimental parameters. The annexes cover basic concepts and definitions, time prediction, and confidence limits when estimating deviations and spectral densities from a finite data set. The annexes also cover translation between the frequency domain and time domain instability measures, examples on how to calculate the time-domain measures of frequency and phase fluctuations, and an extensive bibliography of the relevant literature. Systematic instabilities, such as environmental effects and aging, are discussed in IEEE Std 1193 [B39]

This standard defines and formalizes the techniques and physical quantities used to measure and characterize frequency, phase, and amplitude instabilities in time and frequency instruments and systems.


SDO	IEEE: Institute of Electrical and Electronics Engineers
Document Number	1139
Publication Date	Dec. 8, 2022
Language	en - English
Page Count	60
Revision Level
Supercedes
Committee	IEEE Ultrasonics, Ferroelectrics and Frequency Control

Publish Date	Document Id	Type
Dec. 8, 2022	1139-2022	Revision
Feb. 27, 2009	1139-2008	Revision
July 21, 1999	1139-1999	Revision
April 28, 1989	1139-1988	Revision

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IEEE 1139-2022

IEEE Standard Definitions of Physical Quantities for Fundamental Frequency and Time Metrology--Random Instabilities

IEEE 1139-2022

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