S?ntese de pulsos UWB usando a tecnologia DNAx

• Autor(a) principal: Almeida, Cleomarcio
• Data de Publicação: 2009
• Tipo de documento: Dissertação
• Idioma: por
• Título da fonte: Biblioteca Digital de Teses e Dissertações da INATEL
• Texto Completo: http://tede.inatel.br:8080/tede/handle/tede/131
• topic: Sistemas de transmiss?o com banda ultra-larga; t?cnica DNAx; r?dio por impulsos; sistemas de comunica??o sem-fio.; Engenharia - Telecomunica??es

This work has objective to use of the technique DNAx as a new proposal for the synthesis of UWB pulses. The DNAx technique can produce a single square pulse continuous in time, where the times of rise and fall, time of occurrence and the pulse width can be configured in a simple way. In this work is shows that it is possible to generate the four pulses used in UWB systems (Gaussian and its first three time derivatives) from a combination of several pulses of the type DNAx. The original contribution of this work was to show that a single pulse DNAx and its derivatives have the characteristics appropriate for UWB signals. Two major advantages of using a single pulse DNAx are the ability to format it by setting its parameters and the possibility of constructing an electronic circuit that implements a cell DNAx. Electronic and computer simulations were done through the use of the platform MATLABr and OrCAD.