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Título: | 2-D Coherent Signal Processing: The Adaptive Slowness Approach |
Autor: | Ventosa, Sergio CSIC ORCID ; Simon, Carine CSIC ORCID ; Dañobeitia, Juan José CSIC ORCID ; Schimmel, Martin CSIC ORCID ; Mànuel-Làzaro, Antoni CSIC ORCID | Palabras clave: | f-k filters Spatial averaging filter Coherency Slowness Radon transform |
Fecha de publicación: | 2007 | Editor: | ACTA Press | Citación: | Proceedings of the Fourth IASTED International Conference: 158-163 (2007) | Resumen: | In 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 | Descripción: | Fourth IASTED International Conference on Signal Processing, Pattern Recognition, and Applications (SPPRA '07), 14-16 February 2007, Innsbruck, Austria.-- 6 pages, 4 figures | Versión del editor: | http://dl.acm.org/citation.cfm?id=1710553 http://www.actapress.com/content_of_proceeding.aspx?proceedingid=430 |
URI: | http://hdl.handle.net/10261/107745 | Identificadores: | isbn: 978-0-88986-646-1 isbn: 978-0-88986-647-8 |
Aparece en las colecciones: | (Geo3Bcn) Libros y partes de libros (UTM) Comunicaciones congresos |
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