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Filtro kl/dvs para atenuação do ruído "ground roll"Filtro kl/dvs para atenuação do ruído "ground roll"
(Universidade Federal do Rio Grande do NorteBRUFRNPrograma de Pós-Graduação em Ciência e Engenharia do PetróleoPesquisa e Desenvolvimento em Ciência e Engenharia de Petróleo, 2010-08-07)
In geophysics there are several steps in the study of the Earth, one of them is the processing of seismic records. These records are obtained through observations made on the earth surface and are useful for information ...
SVD filtering applied to ground-roll attenuation
(2010)
We present a singular value decomposition (SVD) filtering method for attenuation of the
ground roll. Before the SVD computation, normal move-out (NMO) correction is applied to the seismograms, with the purpose of flattening ...
Supressão do ruído de rolamento superficial utilizando a transformada Curvelet
(Universidade Federal do Rio Grande do NorteBRUFRNPrograma de Pós-Graduação em Ciência e Engenharia do PetróleoPesquisa e Desenvolvimento em Ciência e Engenharia de Petróleo, 2009-05-08)
Among the many types of noise observed in seismic land acquisition there is one produced by surface waves called Ground Roll that is a particular type of Rayleigh wave which characteristics are high amplitude, low frequency ...
Preliminary findings in the rolling behavior of Mules (Equus caballus x Equus asinus)
(2022-04-01)
In order to investigate and create an ethogram of the rolling behavior of mules (Equus caballus × Equus asinus) in comparison to that of horses (Equus caballus), we observed a domestic free-range, mixed group of 17 horses ...
Ground-roll attenuation using a 2D time-derivative filter
(2009)
We present a new filtering method for the attenuation of ground-roll. The method is based on the application of a bi-dimensional filter for obtaining the time-derivative of the seismograms. Before convolving the filter ...
Effect of Including Extruded, Rolled or Ground Corn in Dairy Cow Diets Based on Direct Cut Grass Silage
(Instituto de Investigaciones Agropecuarias, INIA, 2009)
Adaptive seismic ground roll attenuation using the double density dual tree discrete wavelet transform (dwt) method
(UNIVERSIDAD NACIONAL DE COLOMBIA, 2012)
Seismologists working on the reflection of seismic data have been dealing with noise and trying to attenuate noise as much as possible without damaging a particular signal. Many methods have been used to removenoise types, ...