An analysis of ground and instrumental short-period noise

R. CONSOLE, A. ROVELLI

Abstract


The main causes of background noise on seismic recordings are
considered. For this purpose, numerical spectral analysis techniques are
applied to records obtained from an analogue-digital converter.
Firstly, the causes of noise due to the data acquisition system itself,
particularly to the FM magnetic recording apparatus, are analysed.
Subsequently, an analysis is made of seismic ground noise samples
taken under various environmental conditions and recorded either in the
field, or by telemetry, or on magnetic tape.

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DOI: https://doi.org/10.4401/ag-4756

Published by INGV, Istituto Nazionale di Geofisica e Vulcanologia - ISSN: 2037-416X