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Sociedade Brasileira de Telecomunicações

2012 - XXX Simpósio Brasileiro de Telecomunicações



No-Reference Video Quality Assessment Method based on the Levenberg-Marquardt Minimization

The processing and transmission of digital video are impaired by degradations that impact its quality. Evaluation tools are then required to assess the quali...

SBrT 2012


Low-complexity widely linear RLS filter using DCD iterations

Widely linear (WL) adaptive filters have been receiving much attention recently, since they take advantage of the full second-order statistics of improper ...

SBrT 2012


Sistemas de Informação MIMO: Desempenho, Limitantes e Perspectivas

Este trabalho aborda os aspectos de processamento estatístico de sinais e teoria da informação para supressão (cancelamento) de interferência em sistemas c...

SBrT 2012


Stochastic Analysis of the Orthogonal Frequency Division Multiplexing Scheme

The Orthogonal Frequency Division Multiplexing (OFDM) scheme has been chosen as the transmission scheme for most digital television, digital radio and wire...

SBrT 2012


Modulação para rádio digital utilizando a amplitude de autocorrelação de códigos PN para transporte da informação.

The frequency bands used in mobile communications are allocated according to the type of application. With the need for more channels, the frequency spect...

SBrT 2012