IEEE Std 1139-1988
IEEE Standard Definitions of Physical Quantities for Fundamental Frequency and Time Metrology

Standard No.

IEEE Std 1139-1988

Release Date

1989

Published By

Institute of Electrical and Electronics Engineers (IEEE)

Status

Be replaced 1999-07

Replace By

IEEE Std 1139-1999

Latest

IEEE Std 1139-2022

Scope

This standard covers the fundamental metrology for describing physical quantities of importance to frequency and time metrology. Quantities covered are frequency instability, phase instability, spectral densities, time instability variances, time prediction, and confidence limits when estimating the variance from a finite data set. In addition, recommendations are made for the reporting of measure...

IEEE Std 1139-1988 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