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...
- Marina F Santos
- Melissa Bilher
- Sinara Matos
- Lucas Severo
- ADS-B
- LNA
- Low Noise Amplifier
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...
- Pedro Cruz
- Matheus C Damasceno
- Ricardo Suyama
- Murilo Bellezoni Loiola
- physical layer security
- wireless communications
- signal processing
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...
- Ruby Stella Ospina
- Menno van den Hout
- Chigo Okonkwo
- Darli Mello
- Mode-dependent loss
- mode-dependent gain
- space-division multiplexing
- long-haul transmission
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 ...
- T M Bezerra
- J. F. Souza
- Maísa L F Santos
- Silvana Cunha Costa
- Suzete Correia
- Acoustic analysis
- Hilbert Marginal Spectrum
- vocal deviations
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...
- Antonio Anderson Silva Marques
- Paulo Henrique Portela de Carvalho
- ALE
- ESF
- HF
- FOT
SBrT 2020