Study of Astronomical and Geodetic Series using the Allan Variance

Details Study of Astronomical and Geodetic Series using the Allan Variance Study of Astronomical and Geodetic Series using the Allan Variance

2011-05-19

arxiv.org/abs/1105.3837v1

Kinematics and Physics of Celestial Bodies, 2011, Vol. 27, No. 1, pp. 42--49

Physics

Geophysics

10 pp., corresponds to the journal printed version with several misprints corrected

Scientific paper

10.3103/S0884591311010053

Allan variance (AVAR) was first introduced more than 40 years ago as a estimator of the stability of frequency standards, and now it is actively used for investigations of time series in astronomy, geodesy and geodynamics. This method allows one to effectively explore the noise characteristics for various data, such as variations of station and source coordinates, etc. Moreover, this technique can be used to investigate the spectral and fractal structure of the noise in measured data. To process unevenly weighted and multidimensional data, which are usual for many astronomy and geodesy applications, AVAR modifications are proposed by the author. In this paper, a brief overview is given of using of classical and modified AVAR method in astronomy and geodynamics.

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