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Aperiodic wavefield signal apparition : De-aliased simultaneous source separation

van Manen, Dirk Jan; Robertsson, Johan O.A.; Eggenberger, Kurt; Andersson, Fredrik LU and Amundsen, Lasse (2016) Meeting 2016 - Society of Exploration Geophysicists In SEG Technical Program Expanded Abstracts 2016 35. p.102-106
Abstract

In wavefield signal apparition, acquisition with periodic variations in source activation parameters shifts all or part of a signal cone out to, e.g., the Nyquist wavenumber, enabling perfect separation of simultaneous-source (sim-source) data below a certain temporal frequency. Cyclic convolution in the spatial frequency domain is used to generalise the signal apparition concept to the case of aperiodic variations in the source activation parameters. The separation is formulated as a leastsquares reconstruction in the frequency-wavenumber (f k) domain. The methodology is used in combination with normal moveout correction to de-alias the sim-source separation and enables shooting on position in sim-source acquisition.

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author
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
in
SEG Technical Program Expanded Abstracts 2016
volume
35
pages
5 pages
publisher
Society of Exploration Geophysicists
conference name
Meeting 2016 - Society of Exploration Geophysicists
external identifiers
  • scopus:85019131660
DOI
10.1190/segam2016-13943410.1
language
English
LU publication?
yes
id
448f666b-290d-4acf-8b20-d775b789d61d
date added to LUP
2017-06-01 15:32:56
date last changed
2017-06-04 05:00:19
@inproceedings{448f666b-290d-4acf-8b20-d775b789d61d,
  abstract     = {<p>In wavefield signal apparition, acquisition with periodic variations in source activation parameters shifts all or part of a signal cone out to, e.g., the Nyquist wavenumber, enabling perfect separation of simultaneous-source (sim-source) data below a certain temporal frequency. Cyclic convolution in the spatial frequency domain is used to generalise the signal apparition concept to the case of aperiodic variations in the source activation parameters. The separation is formulated as a leastsquares reconstruction in the frequency-wavenumber (f k) domain. The methodology is used in combination with normal moveout correction to de-alias the sim-source separation and enables shooting on position in sim-source acquisition.</p>},
  author       = {van Manen, Dirk Jan and Robertsson, Johan O.A. and Eggenberger, Kurt and Andersson, Fredrik and Amundsen, Lasse},
  booktitle    = {SEG Technical Program Expanded Abstracts 2016},
  language     = {eng},
  pages        = {102--106},
  publisher    = {Society of Exploration Geophysicists},
  title        = {Aperiodic wavefield signal apparition : De-aliased simultaneous source separation},
  url          = {http://dx.doi.org/10.1190/segam2016-13943410.1},
  volume       = {35},
  year         = {2016},
}