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Authors: Alfano, L.*
Giudici, M.*
Title: Determination of electrical signal masked by random noise using «super-averaged» functions
Issue Date: Apr-2000
Series/Report no.: 43/2
Keywords: Electrical methods
electromagnetic methods
data acquisitions
data processing
signal to-noise radio
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.
Appears in Collections:04.02.04. Magnetic and electrical methods
Annals of Geophysics

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