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http://hdl.handle.net/2122/1268| 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.: | 2/43 (2000) | URI: | http://hdl.handle.net/2122/1268 | Keywords: | Electrical methods electromagnetic methods data acquisitions data processing signal to-noise radio |
Subject Classification: | 04. Solid Earth::04.02. Exploration geophysics::04.02.04. Magnetic and electrical methods | 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: | Annals of Geophysics |
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