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Annales Geophysicae An interactive open-access journal of the European Geosciences Union
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Volume 34, issue 4
Ann. Geophys., 34, 437–449, 2016
https://doi.org/10.5194/angeo-34-437-2016
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.
Ann. Geophys., 34, 437–449, 2016
https://doi.org/10.5194/angeo-34-437-2016
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.

Regular paper 19 Apr 2016

Regular paper | 19 Apr 2016

Effect of data gaps: comparison of different spectral analysis methods

Costel Munteanu et al.

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We investigate the effect of data gaps for various methods of estimating the amplitude spectrum of a time series. We probe the effects of a single data gap of varying size and of numerous small gaps distributed within the time series. We use synthetic data sets and magnetic field measurements from the Venus Express spacecraft. For multiple gaps and turbulent magnetic data, we show that some advanced methods overestimate the high frequencies, while FFT slightly underestimates them.
We investigate the effect of data gaps for various methods of estimating the amplitude spectrum...
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