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Sociedade Brasileira de Telecomunicações


Projeto de um Amplificador de Baixo Ruído com Polarização Ativa para Receptores ADS-B

This work presents the design of a low noise amplifier (LNA) targeted to be used in 1.09 GHz ADS-B receivers. The design aims to satisfy the communication st...

SBrT 2020


Increasing cross-correlation in LoRaWAN RSSI based key generation with DCT and PCA

Physical-layer Key generation for wireless networks has been considered a promising alternative to traditional techniques based on pseudorandom number genera...

SBrT 2020


Mode-dependent Loss and Gain Emulation in Coupled SDM Transmission

Space-division multiplexing (SDM) is currently the only solution to cope with the exponential growth of data traffic in optical transmission networks. The pe...

SBrT 2020


Aplicação do espectro marginal de Hilbert na análise de desvios vocais

In this work, the amplitude-frequency graphs provided by Hilbert's marginal spectrum are used to characterize both healthy voice signals as those with vocal ...

SBrT 2020


Análise e Verificação Empírica de Modelos de Predição para Comunicação em HF em Regiões de Baixa Latitude

Several prediction models and digital signal processing techniques have been developed for HF communication, especially the ALE technique, but there is still...

SBrT 2020