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Gap filler adaptativo para sistema ISDB-Tb
(Universidade Presbiteriana Mackenzie, 2014-08-07)
This master thesis presents the proposal of assigning the cognitive ability to a gap filler. Differently from the usual repeaters found on the market, the adaptive gap filler is able to automatically monitor tuned channels ...
Modulador 1-seg para SBTVD usando GNU Radio
(Universidade Presbiteriana Mackenzie, 2015-02-06)
This paper describes by theoretical conceptualization and pratical experiences two relevant themes of electrical engineering and communications: software defined radio and the Brazilian digital television standard. This ...
Diversidade espacial na recepção em sistemas ISDB-Tb
(Universidade Presbiteriana Mackenzie, 2015-06-25)
In Brazil, the broadcasting system for television content in high definition is the ISDB-Tb. Although robust, the content transmission in this system, like in any radio frequency propagation, can suffer from external ...
Comparação do sistema LTE operando na faixa de 2,5 GHZ e 700 MHZ
(Universidade Presbiteriana Mackenzie, 2015-08-28)
The Long Term Evolution (LTE) system belongs to the 4th generation phone system. It is standardized by 3GPP and utilizes several technologies to improve the performance of data transmission. This permits flexibility for ...