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Sociedade Brasileira de Telecomunicações

2013 - XXXI Simpósio Brasileiro de Telecomunicações



Esquema de Codificação Turbo Quaternária aplicada em Comunicação Cooperativa

Zelmann Strobel Penze ,Renato Baldini Filho

SBrT 2013


Evaluation of Image Color Metrics for Watermarked Color Images

This paper presents a comparative study of performance metrics applied to color images with invisible digital watermark. The imperceptibility of the waterm...

SBrT 2013


An In-Field Calibration Method based on Performance-Surface for the Multiresolution Bilateral Filter Applied to X-Ray Images

Several spatial filters applied to images are available in technical and scientific literature. Besides the reduction of the noise level, some of them also...

SBrT 2013


Radar Meteorológico com Antenas Fixas: Projeto e Analise de Detector Ótimo

In a recent paper, we have proposed a new lowcost framework for the construction of meteorological radars, by using two fixed widebeam antennas. In this wor...

SBrT 2013


Algoritmo de estimação do azimute para alvos distribuídos em radares do tipo ArcSAR

This article presents an algorithm to estimate a distributed target’s azimuth using an ArcSAR radar. This radar has transmitting and receiving antennas which...

SBrT 2013