Now showing items 1-5 of 5
Antena indoor de dupla polarização para recepção de TV digital
(Universidade Presbiteriana Mackenzie, 2018-01-30)
With the establishment of digital television technology, improvements have emerged com- pared to analogue, such as bringing users better quality picture and video. This transition of the analogue/digital system is already ...
Simulações da utilização do grafeno no processo de modulação de fase em sinais ópticos
(Universidade Presbiteriana Mackenzie, 2017-11-29)
This work presents studies and simulations of phase modulators in optical signals with the use of integrated components based on silicon photonics with graphene to improve the data transmission capacity (bandwidth) due ...
Otimização da escolha de modelo de propagação por medição de campo e inteligência artificial
(Universidade Presbiteriana Mackenzie, 2019-02-05)
The propagation model to be chosen in the design of a digital terrestrial broadcast station is a critical point for predicting the coverage area. There are several models, with specific characteristics that may be better ...
Biometria de voz com base na replicação do pitch
(Universidade Presbiteriana Mackenzie, 2018-12-20)
Authentication and security in automated systems have become very much necessary in our days and many techniques have been proposed towards this end. One of these alternatives is biometrics in which human body characteristics ...
Desenvolvimento da etapa BICM do sistema ATSC 3.0 na plataforma GNU radio
(Universidade Presbiteriana Mackenzie, 2019-02-06)
This work consists on the creation of the Bit Interleaved Coding And Modulation (BICM) stage of the Advanced Television Systems Committee 3.0 (ATSC 3.0) digital TV system in Software Defined Radio (SDR), using the GNU ...