Estudo de métodos de modulação e codificação de canal para a próxima geração de TV terrestre

• Ano de defesa: 2016
• Autor(a) principal: Leone, Leonardo Fernando
• Orientador(a): Akamine, Cristiano
• Tipo de documento: Dissertação
• Tipo de acesso: Acesso aberto
• Idioma: por
• Instituição de defesa: Universidade Presbiteriana Mackenzie
• Palavras-chave em Português: modulação digital; codificação de canal; sistemas de TV
• Área do conhecimento CNPq: CNPQ::ENGENHARIAS::ENGENHARIA ELETRICA
• Link de acesso: http://dspace.mackenzie.br/handle/10899/24445

This work aims at studying digital modulation and channel encoding for the next generation of digital terrestrial TV. From existing studies on the efficiency of diferent channel encoders FEC (forward-error-correction) and modulation order It was possible to adapt ISDB-TB (Integrated System Digital Broadcast - Terrestrial ) using the BICM (Bit-Interleaver Coding Modulation) scheme. Computational tool Simulink made possible model, simulate and lift curves for such a system. It was reached asymptotic gain of up to 3,48 dB in comparition with ISDB-TB and a bit rate of up to 34,82 Mbps. In addition to the results generated in simulation, this paper presents an overview of the scenario planned for the television content consumption taking as its starting point the UHDTV (Ultra-High Definition Television) and the internet. This paper also discusses the transmission techniques used by major TV systems in order to exploit their advantages regarding robustness and spectral efficiency.