DocumentCode
3198759
Title
Estimating the modified Allan variance
Author
Greenhall, Charles A.
Author_Institution
Jet Propulsion Lab., California Inst. of Technol., Pasadena, CA, USA
fYear
1995
fDate
31 May-2 Jun 1995
Firstpage
346
Lastpage
353
Abstract
The third-difference approach to modified Allan variance (MVAR) leads to a tractable formula for a measure of MVAR estimator confidence, the equivalent degrees of freedom (edf), in the presence of power-law phase noise. The effect of estimation stride on edf is tabulated. A simple approximation for edf is given, and its errors are tabulated. A theorem allowing conservative estimates of edf in the presence of compound noise processes is given
Keywords
frequency stability; moving average processes; phase noise; spectral analysis; MVAR; compound noise processes; equivalent degrees of freedom; estimation stride; estimator confidence; modified Allan variance; power-law phase noise; third-difference approach; Computational modeling; Estimation theory; Frequency estimation; Laboratories; Local area networks; Noise measurement; Phase estimation; Phase measurement; Phase noise; Propulsion;
fLanguage
English
Publisher
ieee
Conference_Titel
Frequency Control Symposium, 1995. 49th., Proceedings of the 1995 IEEE International
Conference_Location
San Francisco, CA
Print_ISBN
0-7803-2500-1
Type
conf
DOI
10.1109/FREQ.1995.483920
Filename
483920
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