Title :
Recipes for degrees of freedom of frequency stability estimators
Author :
Greenhall, Charles A.
Author_Institution :
Jet Propulsion Lab., California Inst. of Technol., Pasadena, CA, USA
fDate :
12/1/1991 12:00:00 AM
Abstract :
The Allan variance for an averaging time τ can be estimated either from all available phase samples or from a subgrid of samples with spacing τ. The author gives a set of computational recipes that yield the variance of both estimators, with less than 2% error, for the five power-law components of the classical continuous-time clock noise model
Keywords :
clocks; computerised signal processing; electronic engineering computing; frequency measurement; frequency stability; measurement standards; Allan variance; averaging time; computational recipes; continuous-time clock noise model; degrees of freedom; frequency measurement; frequency stability estimators; power-law components; subgrid of samples; Clocks; Forward contracts; Frequency estimation; Measurement standards; Oscillators; Phase estimation; Propulsion; Random processes; Space technology; Stability;
Journal_Title :
Instrumentation and Measurement, IEEE Transactions on