2015 - XXXIII Simpósio Brasileiro de Telecomunicações
Close Expressions for Meyer Wavelet and Scale Function
Many continuous wavelets are defined in the frequency domain and do not have analytical expressions in the time domain. Meyer wavelet is ordinarily defined...
- Victor Vermehren Valenzuela
- Hélio Magalhães de Oliveira
- Meyer wavelets
- multiresolution analysis
- scale function
SBrT 2015
User Identification and Key Regeneration System Employing Rotated Reference Images of the Iris
A new test called rotation search is proposed for user identification and cryptographic key regeneration in systems employing a digital representation o...
- Guilherme Nunes Melo
- Valdemar C. da Rocha Jr.
- José S. Lemos-Neto
- Iris code
- biometry
- coding
- authentication
SBrT 2015
Modelamento Markoviano para Transmissão de Símbolos Não Binários Usando Sistemas OFDM em Canais Seletivos em Frequência
This paper evaluates the relevance of using a fi- nite state Markov channel, more specifically the Gilbert-El liot channel (GEC) in order to reproduce the...
- Igor Moreira
- Cecilio Pimentel
- Finite-state Markovian channels
- frequency selective fading
- parameters estimation
- error probability.
SBrT 2015
Projeto e Caracterização de Acopladores para Power Line Communications
This paper discusses the project of capacitive cou- plers for Power Line Communications (PLC) in the range frequency of 9 kHz to 500 kHz and 1,7 to 500 MHz...
- Lu ́ıs Guilherme da S. Costa
- Ant ˆonio Angelo M. Picorone
- An t ˆonio Carlos M. de Queiroz
- Vin ́ıcius Lagrota R. da Costa
- Mois ́es V. Ribeiro
- Power Line Communications
- coupler
- Microstrip
SBrT 2015
Simulação de Dipolos Retangulares de Grafeno na Faixa de Terahertz no COMSOL
This paper shows the study about antennas dipole of graphene with different dimensions being excited by voltage source. For that it will be used the soft...
- Felipe Bamberg Soares
- Rodrigo G Azevedo
- Karlo Q. da Costa
- Dipolos de grafeno
- radiação na faixa do terahertz
- COMSOL
- antenas
SBrT 2015