2010 - VII International Telecommunications Symposium
A Low-Cost Implementation of High-Order Square M-QAM Detection/Demodulation in a FPGA Device
This paper outlines a low-cost technique for detection/demodulation of high-order square M-ary quadrature amplitude modulation (M-QAM), M = 4, 16, 64, 256,...
- Gléverson Fabner Condé Lemos
- Marcos Vinícius Silva Oliveira
- Fabrício P. V. de Campos Luciano Manhães de Andrade Filho
- Moisés Vidal Ribeiro
SBrT 2010
Ambient Noise Classification for Automatic Speaker Identification
This paper proposes two methods for acoustic ambient noises classification. The classification is based on the Kurtosis coefficient and the Bhattacharyya d...
- R. Santana
- L. Zão
- R. Coelho
- Automatic Speaker Recognition
- ambient noises
- noises classification
SBrT 2010
An Adequate Objective Performance Evaluation of Dirac Video Codec Compared to H.264/AVC
Dirac, a relevant new open wavelet-based video codec, has been released recently. The main contribution of this paper is an adequate performance evaluation...
- André F. de Araujo
- Yuzo Iano
- Rangel Arthur
- Dirac video codec
- H.264; Video Coding
- Vide Compression
- Wavelet-based video coding
SBrT 2010
Analysing on the Quality of Head Tomographic Images with Power Intensity Variation
Tomography is a non-invasive exam technique that provides a great amount of visual information of virtually inaccessible areas of the body. This paper anal...
- Arthur Barreto de Rangel Moreira Cavalcanti
- Rafael Dueire Lins
- Antonio Edsom Carvalho Filho
- Tomography
- Biomedical image processing
- Image analysis
SBrT 2010
Analysis of DOP in the Presence of PMD and PDL for RZ/RZ-DPSK Signals in High-Rate Optical Transmission Link
This work analyzed numerically the relationship between DOP, PMD and PDL dispersion effects in high-rate optical communication systems for differential pha...
- Raymundo Nogueira de Sá Netto
- Fátima Regina Caldeira Barroso
- João Batista Rosa Silva
- DOP
- DPSK
- PDL
- PMD
SBrT 2010