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AMELIORATION DU RAPPORT SIGNAL / BRUIT A L'AIDE DU FILTRAGE EN EVENTAIL*
ETUDE D'UN CAS CONCRET
- Source: Geophysical Prospecting, Volume 12, Issue 3, Jul 1964, p. 258 - 282
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- 27 Apr 2006
Abstract
Abstract
Case history of the use of fan filtering for improving reflection continuity without destroying their character. The field technique is described: wide‐band, large dynamical range recording with a programmed gain control and a very slow A.G.C., small distance between trace centers, high cutoff wave‐number.
Although the total amount of mixing due to fan filtering is rather high, a broad spectrum was obtained and inverse convolution filtering was used to improve trace resolution.