Skip to main content
U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Interpreting Oscillatory Frequency Stability Plots



David A. Howe


This writing discusses the appearance of peaks and valleys in Allan deviation plots (also known as sigma-tau, root Avar, or Adev plots).
Proceedings Title
2002 IEEE Intl. Freq. Cont. Symp
Conference Dates
May 28-31, 2003
Conference Location
New Orleans, LA
Conference Title
Proc. 2002 IEEE Intl. Freq. Cont. Symp


Howe, D. (2002), Interpreting Oscillatory Frequency Stability Plots, 2002 IEEE Intl. Freq. Cont. Symp , New Orleans, LA, [online], (Accessed June 20, 2024)


If you have any questions about this publication or are having problems accessing it, please contact

Created January 1, 2002, Updated February 17, 2017