Seismic noise cancellation in a geothermal field

Autor:	David B. Harris, Steve Jarpe, Philip E. Harben
Rok vydání:	1991
Předmět:	Background noise Noise Geophysics Geochemistry and Petrology Passive seismic Acoustics Reference noise Microearthquake Seismic noise Noise floor Seismology Geology Active noise control
Zdroj:	GEOPHYSICS. 56:1677-1680
ISSN:	1942-2156 0016-8033
DOI:	10.1190/1.1442979
Popis:	High background seismic noise due to process machinery in production oil or geothermal fields can present a major problem for active seismic studies such as reflection and refraction surveys and passive seismic studies such as microearthquake monitoring. The general noise suppression problem is a difficult one since process noise may be due to a large number of sources distributed over a large region. In some situations, one or a few sources may dominate the noise field locally, presenting an opportunity for noise suppression by cancellation. In this note we describe an application of adaptive noise cancellation (Widrow, et al., 1975) in which we attempt to suppress noise recorded at a primary monitoring site using reference noise recorded at a major nearby noise source.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::5a8ff3437e19e84b18f2f77da6dc6efc https://doi.org/10.1190/1.1442979 Zobrazit plný text záznamu