IEEE Std 1139-1999
IEEE Standard Definitions of Physical Quantities for Fundamental Frequency and Time Metrology-Random Instabilities

Standard No.

IEEE Std 1139-1999

Release Date

1999

Published By

Institute of Electrical and Electronics Engineers (IEEE)

Status

Be replaced 2009-02

Replace By

IEEE Std Std 1139-2008

Latest

IEEE Std 1139-2022

Scope

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, a...

IEEE Std 1139-1999 history

• 2022 IEEE Std 1139-2022 IEEE Standard Definitions of Physical Quantities for Fundamental Frequency and Time Metrology--Random Instabilities
• 2009 IEEE Std Std 1139-2008 IEEE Standard Definitions of Physical Quantities for Fundamental Frequency and Time Metrology--Random Instabilities
• 1999 IEEE Std 1139-1999 IEEE Standard Definitions of Physical Quantities for Fundamental Frequency and Time Metrology-Random Instabilities
• 1989 IEEE Std 1139-1988 IEEE Standard Definitions of Physical Quantities for Fundamental Frequency and Time Metrology