Zobrazeno 1 - 7
of 7
pro vyhledávání: '"Alessandro J. S. Dutra"'
Autor:
Thiago de M. Prego, Eduardo A. B. da Silva, Sergio L. Netto, Jose F. L. de Oliveira, Alessandro J. S. Dutra
Publikováno v:
Digital Signal Processing. 34:67-73
Frequency-estimation algorithms devised for complex sinusoids, including the maximum-likelihood (ML) approach, when operating on real sinusoidal signals, suffer from spectral interference due to the superposition of the aliasing components at negativ
Publikováno v:
IEEE Transactions on Signal Processing. 62:3833-3848
We present a novel method for the design of finite im- pulse response (FIR) filters with discrete coefficients that belong in thesumofpowers-of-two(POT)space.Theimportanceofthisclass of filters cannot be overstated, given the ever-increasing number o
Publikováno v:
IEEE Journal of Selected Topics in Signal Processing. 5:370-385
This paper presents lossy compression algorithms which build on a state-of-the-art codec, the Set Partitioned Embedded Block Coder (SPECK), by incorporating a lattice vector quantizer codebook, therefore allowing it to process multiple samples at one
Autor:
Tania Paola L. Arango, Bruno P. Leao, Alessandro J. S. Dutra, Luiz Felipe Willcox de Souza, Rodrigo H. Salim, Alexandre P. Alves da Silva, Debora C. S. Reis
Publikováno v:
2015 18th International Conference on Intelligent System Application to Power Systems (ISAP).
We devise a data-fusion method based on the concept of Hybrid Systems that use oil-in-gas measurements from collected insulating oil samples and acoustic emission monitoring data to increase the knowledge of the operating conditions of power transfor
Publikováno v:
ISCAS
A new method for the design of finite impulse response (FIR) filters whose discrete coefficient space is the power-of-two space is presented. We employ a vector successive approximation technique successfully used in data compression algorithms to pr
Autor:
Eduardo A. B. da Silva, Vitor Silva, Diego F. de Souza, Nuno M. M. Rodrigues, Alessandro J. S. Dutra, Sergio M. M. de Faria
Publikováno v:
Anais do XXVII Simpósio Brasileiro de Telecomunicações.
Publikováno v:
ICIP (1)
Embedded bit-plane-based and Trellis Coded Quantization-based (TCQ) methods are among the state-of-the-art for wavelet image coding. In the JPEG 2000 Verification Model, these two methods have been successfully combined in an Embedded TCQ Wavelet Cod