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IEEE 1139-1999

Historical Revision

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

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Revision Standard - Superseded. Methods of describing random instabilities of importance to frequency and time metrology is covered in this standard. Quantities covered include frequency, amplitude, and phase instabilities; spectral densities of frequency, amplitude, and phase fluctuations; and time-domain variances of frequency fluctuations. In addition, recommendations are made for the reporting of measurements of frequency, amplitude and phase instabilities, especially as regards the recording of experimental parameters, experimental conditions, and calculation techniques.
This standard covers methods of 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 measures of frequency fluctuations. In addition, recommendations are made for the reporting of measurements of frequency, amplitude and phase instabilities, especially as regards the recording of experimental parameters, experimental conditions, and calculation techniques. Basic concepts and definitions, time prediction, confidence limits when estimating the variance from a finite data set, and confidence limits for frequency domain measures are covered in the annexes. The annexes also cover translation between the frequency-domain and time-domain measures, examples on how to calculate the time-domain measures of frequency fluctuations, and an extensive bibliography of the relevant literature. Systematic instabilities, such as environmental effects and aging, are discussed in IEEE Std 1193-1994 .

SDO IEEE: Institute of Electrical and Electronics Engineers
Document Number 1139
Publication Date July 21, 1999
Language en - English
Page Count 40
Revision Level
Supercedes
Committee IEEE Ultrasonics, Ferroelectrics and Frequency Control
Publish Date Document Id Type View
Feb. 27, 2009 1139-2008 Revision
July 21, 1999 1139-1999 Revision
April 28, 1989 1139-1988 Revision