Application of amplitude thresholding to aid minimum energy adaptive subtraction for multiple attenuation
Access Status
Authors
Date
2018Type
Metadata
Show full item recordCitation
Source Title
ISBN
School
Collection
Abstract
Copyright © (2008) by the Society of Exploration Geophysicists All rights reserved. Model based multiple prediction approaches require an adaptive subtraction step that is able to correct for differences between the real and predicted multiples. The commonly used subtraction process derives shaping operators, in the least squares sense, to minimize the energy difference between the predicted multiples and the field record. Although the minimum energy assumption allows a computationally efficient adaptive subtraction, it can lead to attenuation of primary information. This abstract illustrates how a simple amplitude clipping approach can significantly improve the effectiveness of the least squares adaptive subtraction and minimize primary attenuation.
Related items
Showing items related by title, author, creator and subject.
-
Wellington, P.; Hartley, Bruce; Kepic, Anton (2008)Model based multiple prediction approaches require an adaptive subtraction step that is able to correct for differences between the real and predicted multiples. The commonly used subtraction process derives shaping ...
-
Kühnapfel, Thorsten (2009)For humans, hearing is the second most important sense, after sight. Therefore, acoustic information greatly contributes to observing and analysing an area of interest. For this reason combining audio and video cues for ...
-
Nadri, D.; Urosevic, Milovan; Wilkes, P.; Asgharzadeh, Mehdi (2012)This paper presents a processing workflow to attenuate the strong tube waves from VSP surveys acquired in Perth, Western Australia. An array of 24 hydrophones spaced at 10 metre intervals is attached to a cable run down ...