Zobrazeno 1 - 10 of 45 pro vyhledávání: '"Rafael Ferrari"'
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Akademický článek
A Nonlinear Prediction Approach to the Blind Separation of Convolutive Mixtures
Autor: João Marcos Travassos Romano, Fernando José Von Zuben, Charles Casimiro Cavalcante, Romis Ribeiro de Faissol Attux, Leandro Elias Paiva Rangel, Rafael Ferrari, Leonardo Tomazeli Duarte, Ricardo Suyama
Publikováno v: EURASIP Journal on Advances in Signal Processing, Vol 2007 (2007)
We propose a method for source separation of convolutive mixture based on nonlinear prediction-error filters. This approach converts the original problem into an instantaneous mixture problem, which can be solved by any of the several existing method
Externí odkaz: https://doaj.org/article/500bf3f1837646e9be195814999a1822
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6
Semiconductor optical amplifier space switch BER improvement and guard-time reduction through feed-forward filtering
Autor: Tiago Sutili, Bruno Taglietti, Evandro Conforti, Rafael C. Figueiredo, Rafael Ferrari
Publikováno v: Optics Communications. 426:295-301
Analysis of the guard-time interval impact on bit error rate (BER) of a linear SOA-based space switch aiming the guard-time reduction is presented, including effects of fiber propagation. The characterization employed feed-forward filtering and optic
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::77d57eab4de7f849983df83ec7619b50
https://doi.org/10.1016/j.optcom.2018.05.065
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7
Aplicações da desconvolução preditiva no processamento de dados sísmicos
Autor: Rafael Ferrari, Patricia Santana de Sousa, Romis Attux
Publikováno v: Revista dos Trabalhos de Iniciação Científica da UNICAMP.
Para se obter uma imagem da subsuperfície através da sísmica de reflexão, é necessário filtrar uma série de distorções e ruídos que estão presentes nos dados sísmicos adquiridos em campo. A desconvolução preditiva é uma técnica de fil
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::86239a1cd8f3b290a2b032e0a2a05444
https://doi.org/10.20396/revpibic2620181117
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10
Recursive Least Squares Feed-Forward Filtering Impact on Semiconductor Optical Amplifier Electro-Optical Space Switching Performance
Autor: Evandro Conforti, Rafael Ferrari, Rafael C. Figueiredo, Tiago Sutili, Bruno Taglietti
Publikováno v: 2018 SBFoton International Optics and Photonics Conference (SBFoton IOPC).
The switching performance improvement of an electro-optical space switch based on a semiconductor optical amplifier (SOA) through the implementation of feed-forward filtering is experimentally evaluated. The acquired and post-processed data encompass
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ca24327ad4a79551209adbf21f93d7c5
https://doi.org/10.1109/sbfoton-iopc.2018.8610942
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