Title :
Estimating the modified Allan variance
Author :
Greenhall, Charles A.
Author_Institution :
Jet Propulsion Lab., California Inst. of Technol., Pasadena, CA, USA
fDate :
31 May-2 Jun 1995
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;
Conference_Titel :
Frequency Control Symposium, 1995. 49th., Proceedings of the 1995 IEEE International
Conference_Location :
San Francisco, CA
Print_ISBN :
0-7803-2500-1
DOI :
10.1109/FREQ.1995.483920
