Methods of describing random instabilities of importance to frequency and time metrology are covered. 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 in regard to the recording of experimental parameters, experimental conditions, and calculation techniques.
- Sponsor Committee
- UFFC/UFFC - IEEE Ultrasonics, Ferroelectrics and Frequency Control
- Status
- Active Standard
- PAR Approval
- 2019-03-21
- Superseding
- 1139-2008
- Board Approval
- 2022-06-16
Working Group Details
- Society
- IEEE Ultrasonics, Ferroelectrics and Frequency Control Society
Learn More - Sponsor Committee
- UFFC/UFFC - IEEE Ultrasonics, Ferroelectrics and Frequency Control
- Working Group
-
WG 1139 - Working Group for Revision to IEEE Std 1139
Learn More - IEEE Program Manager
- Vanessa Lalitte
Contact - Working Group Chair
- Elizabeth Donley
No Active Projects
No Active Standards
No Superseded Standards
No Inactive-Withdrawn Standards
No Inactive-Reserved Standards