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Sociedade Brasileira de Telecomunicações

2013 - XXXI Simpósio Brasileiro de Telecomunicações



Códigos Reed-Solomon Aplicados a Sistemas de Marca D’Água Digital no Domínio da Frequência

This paper evaluates, through computer simulations, a coded watermarking system in the discrete wavelet transform (DWT) domain. The robustness of th...

SBrT 2013


Construction of E8 as a left ideal of the Silver algebra

Silver code was originally discovered in [1-4] for 2×2 multiple-input multiple-output (MIMO) channels. This code can be constructed algebraically from a part...

SBrT 2013


Imageamento de difrações sísmicas baseado em métodos de alta-resolução

Seismic imaging is a tool to reconstruct the sub-structure of a given ground from the data collected in a seismic acquisition. The standard technique for thi...

SBrT 2013


Codificador de Vídeo Full HD em Tempo Real com Complexidade Escalável Usando a Biblioteca X264

The objective of this work is to perform real-time full HD video encoding by using the x264 library. This library implements in software a high performance H...

SBrT 2013


Estimação de Parâmetros de Canais de Gilbert-Elliott

This paper compares three methods for estimating the parameters of class of finite state Markov channels, specifically the Gilbert Elliot channel (GEC), so ...

SBrT 2013