Skip to Main Content
Book Chapter

Array Design

Published:
January 01, 1994

Abstract

An array is a pattern of sensors that receives a signal. Arrays have been studied in a wide variety of disciplines. The manner in which the array samples and modifies the signal is a basic part of survey design and is often either neglected or casually considered. For the seismic application, the array sums the signals from a pattern of geophones. The purpose of the sampling and summing is to attenuate source-generateda nd off-line noise while preserving as much of the signal as possible.

Seismic arrays are a special case of generalized wave theory for arrays. General wave theory in this context deals with a propagating wavefront at an arbitrary velocity encountering an array of receivers. Seismic arrays, however, are usually in-line with the source, allowing for some simplification. When the survey becomes 3-D, this simplification does not always apply. Since the individual geophones in the array patterns are summed before the data are seen, the effect of the array may not be realized. On occasion, a high-resolutions urvey with high sourcef requencies, many channels, and close receiver spacing is defeated by the array. The design of the array is a delicate balance between the signal-to-noise (S/N) ratio and resolution. The array design is important enough to consider a case history that illustrates the effect of arrays on resolution.

You do not currently have access to this article.

Figures & Tables

Contents

Society of Exploration Geophysicists Geophysical References Series

Designing Seismic Surveys in Two and Three Dimensions

Dale G. Stone
Dale G. Stone
Search for other works by this author on:
Charles A. Meeder
Charles A. Meeder
Search for other works by this author on:
Society of Exploration Geophysicists
Volume
5
ISBN electronic:
9781560802730
Publication date:
January 01, 1994

GeoRef

References

Related

Citing Books via

Close Modal
This Feature Is Available To Subscribers Only

Sign In or Create an Account

Close Modal
Close Modal