Ground Roll Attenuation
Mostrando 1-3 de 3 artigos, teses e dissertações.
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1. Wide Band Stop Response Using Interdigital Capacitor/CSRR DGS in Elliptical Microstrip Low-Pass Filter
Abstract In this paper, a compact elliptic-response microstrip low pass filter (LPF) is presented with a wide stop-band using stepped impedance resonators. With high attenuation in the stop-band, the overall size reduction of the proposed filter is achieved using a novel defected ground structure technique using an interdigital capacitor and complementary sp
J. Microw. Optoelectron. Electromagn. Appl.. Publicado em: 2020-12
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2. Atenuação de ruídos coerentes utilizando decomposição em modos empíricos
O processamento sísmico tem como principal objetivo fornecer imagem adequada das estruturas geológicas da sub-superfície de bacias sedimentares. Dentre as etapas fundamentais deste processamento está o enriquecimento das reflexões sísmicas através de filtragem de sinais indesejáveis, chamados de ruídos, a amplificação de sinais de interesse e a ap
Publicado em: 2010
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3. Supressão do ruído de rolamento superficial utilizando a transformada Curvelet
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 and low velocity (generating a cone with high dip). Ground roll contaminates the relevant signals and can mask the relevant information,
Publicado em: 2009