Determination of electrical signal masked by random noise using «super-averaged» functions

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L. Alfano
M. Giudici

Abstract

Electrical and electromagnetic methods often require the determination of the amplitude of a periodic signal,produced by controlled sources and masked by natural and artificial noise. Since noise is usually random and uncorrelated, several techniques based on a stacking procedure and spectral decomposition are applied. In thispaper we revise some of these procedures based on Fourier analysis. We propose a technique which uses «super-averaged»functions obtained from the average of the results of the Fourier analysis from the whole data set.

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1.
Alfano L, Giudici M. Determination of electrical signal masked by random noise using «super-averaged» functions. Ann. Geophys. [Internet]. 2000Dec.25 [cited 2021Jun.12];43(2). Available from: https://www.annalsofgeophysics.eu/index.php/annals/article/view/3637
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