Filtrado adaptativo de polarización de señales sísmicas multi-componentes usando la matriz espectral y la transformada s.
En el procesamiento de señales sísmicas, específicamente en el filtrado de las mismas, se distinguen dos tipos de señales, el primer tipo de señales corresponden a la información útil de las capas del subsuelo, el segundo tipo de señal se relaciona al ruido captado en la exploración sísmica, conocid...
- Autores:
-
Fonseca Vargas, Yesid Ferney
- Tipo de recurso:
- http://purl.org/coar/version/c_b1a7d7d4d402bcce
- Fecha de publicación:
- 2016
- Institución:
- Universidad Industrial de Santander
- Repositorio:
- Repositorio UIS
- Idioma:
- spa
- OAI Identifier:
- oai:noesis.uis.edu.co:20.500.14071/35080
- Palabra clave:
- Ground-Roll
Sísmica
Filtro De Polarización
Transformada S
Tiempo-Frecuencia
In seismic signals processing
specifically in seismic signal filtering
two classes of signals are distinguished; first type of signals are related to useful information about subsoil layers
the second type of signals are related to noise captured in seismic exploration records
often known as Ground-Roll. Previous research show that such two type of signals can be separate
measurably
if they are analyzed on a time-frequency domain. Furthermore
some research state the two type of signals have different polarization behaviors
the first one often have linear behaviors whereas the second one have elliptical behavior. In this undergraduate work
it’s proposed a couple of modifications to the filter presented in [1]
which is a polarization filter based on the spectral matrix [2] and the S transform that attenuates the Ground-Roll in seismic signals. The proposed modifications in this works are based on the expansion of the spectral matrix in non-disjoint idempotent matrices and on the change of the polarization and ellipticity attenuation functions described in [1]. Therefore
in this work it’s determined the effectiveness of the proposed modifications by the filtering of a synthetic signal and the construction of some cost functions that allows to compare objectively the filters
the filter presented in [1] and the modifications proposed in this work.
- Rights
- License
- Attribution-NonCommercial 4.0 International (CC BY-NC 4.0)