By Dr. Willy Azarcoya Cabiedes

Este livro aborda as diversas gerações de sistemas de TV até a nova ATSC 3.0.

By Dennis Wallace | MEINTEL, SGRIGNOLI, & WALLACE, LLC | January 31, 2018

A Report To The Corporation for Public Broadcasting Regarding. The purpose of this report is to highlight some of the technological advances and focus on some of the potential opportunities and business considerations, as well as to generally outline the transition plan for TV broadcasters to transition to ATSC 3 in their respective markets.

Por Rich Chernock, presidente do TG3 | ATSC News | Publicado em 3 de agosto de 2015

As pessoas geralmente se referem ao ATSC 3.0 como o “padrão” de transmissão de televisão de próxima geração. Mas, na verdade, ele será composto por um “conjunto” de padrões. Veja como foi concebida a arquitetura de documentação para o conjunto de padrões da TV de última geração.

Por Equipe | ATSC | Publicado em 3 de agosto de 2015

Um Padrão ATSC é um documento que declara especificações ou critérios básicos que são necessários para implementação efetiva e interoperabilidade de Sistemas Avançados de Transmissão Terrestre. Os documentos são fornecidos pela ATSC no formato Acrobat (PDF) e os links podem ser encontrados >>>> AQUI <<<<< . Os arquivos de esquema são fornecidos no formato ZIP.

By Staff | ATSC | Last acess on dec 2024

This publication describes the ATSC standard for the the RF/Transmission of a physical layer waveform. This waveform enables flexible configurations of physical layer resources to target a variety of operating modes. The intent is to signal the applied technologies and allow for future technology adaptation.

By Sungjun Ahn, Sunhyoung Kwon, Seok-Ki Ahn, Hoiyoon Jung, and Sung-Ik Park | set.org.br | 2020

A recent development of Advanced Television Systems Committee (ATSC) 3.0 has made over-the-air services of a 4K ultra-high-definition and a simultaneous multiple highdefinition soft-landed to reality. However, ATSC 3.0 is in essence designed to be forward compatible, and is hence able to provide better extensible features to enrich the next media era beyond this initial deployment. This paper introduces several selected features of ATSC 3.0 that could play a prominent role in the near future. This investigation encompasses the optional technologies defined in ATSC 3.0 physical-layer which can improve single frequency network integrity, enable additional features in other domains, or further widen the throughput capability. Majorly focused on the extensibility of ATSC 3.0, we also elaborate on possible inter-network cooperation with broadband and cellular systems.

By Luke Fay, Lachlan Michael, David Gómez-Barquero, Nejib Ammar, and M. Winston Caldwell | UPV | 2016

This paper provides an overview of the physical layer specification of ATSC 3.0, the next-generation digital terrestrial broadcasting standard. ATSC 3.0 does not have any backwards-compatibility constraint with existing ATSC standards, and it uses OFDM-based waveforms along with powerful LDPC forward error correction codes similar to existing state-of-the art. However, it introduces many new technological features such as two-dimensional non-uniform constellations, improved and ultra-robust LDPC codes, powerbased layered division multiplexing to efficiently provide mobile and fixed services in the same radio frequency (RF) channel, as well as a novel frequency pre-distortion MISO antenna scheme. ATSC 3.0 also allows bonding of two RF channels to increase the service peak data rate and to exploit inter-RF channel frequency diversity, and to employ dual-polarized MIMO antenna system. Furthermore, ATSC 3.0 provides great flexibility in terms of configuration parameters (e.g., 12 coding rates, 6 modulation orders, 16 pilot patterns, 12 guard intervals, and 2 time interleavers), and also a very flexible data multiplexing scheme using time, frequency and power dimensions. As a consequence, ATSC 3.0 not only improves the spectral efficiency and robustness well beyond the first generation ATSC broadcast television standard, but it also is positioned to become the reference terrestrial broadcasting technology worldwide due to its unprecedented performance and flexibility. Another key aspect of ATSC 3.0 is its extensible signaling, which will allow including new technologies in the future without disrupting ATSC 3.0 services. This paper provides an overview of the physical layer technologies of ATSC 3.0, covering the ATSC A/321 standard that describes the so-called bootstrap, which isthe universal entry point to an ATSC 3.0 signal, and the ATSC A/322 standard that describes the physical layer downlink signals after the bootstrap. A summary comparison between ATSC 3.0 and DVB-T2 is also provided

What is coded orthogonal frequency-division multiplexing (COFDM)?

By Rahul Awati | TechTarget | August 2021

Coded orthogonal frequency-division multiplexing (COFDM) is a telecommunications modulation scheme that divides a single digital signal across 1,000 or more signal carriers simultaneously. The signals are sent at right angles to each other -- hence, orthogonal -- so that they don't interfere with each other. COFDM is used predominantly in Europe. In the U.S., the Advanced Television Systems Committee has chosen 8-level vestigial sideband as its equivalent modulation standard.

NAB 2016 - “O OLHAR DOS ESPECIALISTAS DA SET

Por Cristiano Akamine | SET/UPM | Junho de 2016

o ATSC 3.0 utiliza uma das mais modernas técnicas de codificação de canal, modulação e multiplexação. Usando um canal de TV com 6 MHz de largura de banda é possível transmitir dados a uma taxa de bits entre 0,83 até 57 Mbps. O artigo descreve a camada física do padrão.

By Team (Guillermo Marcus et al) | NVIDIA CORPORATION | 2021-2024

In this notebook you will learn about the principles of bit interleaved coded modulation (BICM) and focus on the interface between LDPC decoding and demapping for higher order modulation. Further, it will be discussed the idea of all-zero codeword simulations that enable bit-error rate simulations without having an explicit LDPC encoder available. In the last part, we analyze what happens for mismatched demapping, e.g., if the SNR is unknown and show how min-sum decoding can have practical advantages in such cases.