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2-D Coherent Signal Processing: The Adaptive Slowness Approach

AuthorsVentosa, Sergio CSIC ORCID ; Simon, Carine CSIC ORCID CVN ; Dañobeitia, Juan José CSIC ORCID ; Schimmel, Martin CSIC ORCID ; Mànuel, Antoni
Keywordsf-k filters
Spatial averaging filter
Radon transform
Issue Date2007
PublisherACTA Press
CitationProceedings of the Fourth IASTED International Conference: 158-163 (2007)
AbstractIn geophysics, the frequency-wave number (f–k) filter is a common tool which allows to distinguish between seismic phases through their apparent velocity. However, this filter is based on a two dimensional Fourier transform, so it is not well adapted to the non-stationary nature of 2-D signals present in geophysics, because of its lack of timespace resolution. In order to solve this limitation, we introduce a new tool called adaptive slowness filter, inspired by spatial averaging and Radon filters. Our procedure can attenuate undesired signals with a known slowness (inverse of velocity) and time-distance location, while mantaining the other signals with different location or slowness with minimal distortion
DescriptionFourth IASTED International Conference on Signal Processing, Pattern Recognition, and Applications (SPPRA '07), 14-16 February 2007, Innsbruck, Austria.-- 6 pages, 4 figures
Publisher version (URL)http://dl.acm.org/citation.cfm?id=1710553
Identifiersisbn: 978-0-88986-646-1
isbn: 978-0-88986-647-8
Appears in Collections:(Geo3Bcn) Libros y partes de libros
(UTM) Libros y partes de libros
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