scholarly journals Recent Technologies of Digital Broadcasting System. Recent Codec Equipments. Digital Transmission Codec for HDTV MUSE Signals.

1993 ◽  
Vol 47 (4) ◽  
pp. 478-481
Author(s):  
Hiroyuki Imaizumi ◽  
Masami Honda
Keyword(s):  
Digital Transmission ◽  
Broadcasting System ◽  
Digital Broadcasting

scholarly journals Selection and Justification of a Digital System Broadcasting for the Republic of Angola

2021 ◽  
Vol 7 (3) ◽  
pp. 55-63
Author(s):  
V.M.J. Santos
Keyword(s):  
Costa Rica ◽  
Sri Lanka ◽  
Digital Transmission ◽  
Experimental Results ◽  
The World ◽  
Broadcasting System ◽  
Digital Transmitter ◽  
Digital Broadcasting ◽  
The Republic ◽  
The City

In this work we seek to approach the choice of the Republic of Angola for the ISDB-T telebroadcasting system. The experimental results of the ISDB-T digital transmission system in the Republic of Angola are Execelente. Currently, the Japanese terrestrial digital broadcasting system (ISDB-T) is used in 14 countries around the world (Argentina, Bolivia, Brazil, Chile, Costa Rica, Japan, Peru, Paraguay, El Salvador, Uruguay, Honduras, Venezuela, Philippines, Botswana) and 6 more countries (Angola, Maldives, Sri Lanka, Guatemala, Ecuador, Nicaragua) have adopted this system. The study shows that ISDB-T is a system applicable in our country, as even with the transmitter operating at 50% of its maximum power, the signal is received in a large part of the city of Luanda, with failures only in regions far from the center urban. The implementation of a fully digital transmitter that is foreseen, the increase of the transmitter's power, among other changes, may provide better advantages in implementing the ISDBT in the Republic of Angola. The commitment comes at a time when Angola plans to cover the entire national territory, starting in 2023.

Measurement and Simulation of System Performance of Digital Broadcasting System

2013 ◽  
Vol 284-287 ◽  
pp. 2908-2912
Author(s):  
Hsien Wei Tseng ◽  
Wei Chien ◽  
Shih Nan Lu ◽  
Wei Chen Lee ◽  
Yih Guang Jan ◽  
...  
Keyword(s):  
System Performance ◽  
Simulation Analysis ◽  
Convolutional Code ◽  
Additive White Gaussian Noise ◽  
Viterbi Decoding ◽  
Modulation Formats ◽  
Reed Solomon Code ◽  
Broadcasting System ◽  
Digital Broadcasting ◽  
Transmitted Signal

In this paper, we use MATLAB software to build the physical layer transceiver of the Digital Video Broadcasting Terrestrial System (DVB-T) and Additive White Gaussian Noise (AWGN) is added into the transmitted signal during its transmission. The transmitted signal passes through modulation, demodulation, encoding and decoding processes the resulting demodulated signal is compared with the transmitted signal to calculate its Bit Error Rate (BER). Three modulation formats, QPAK, 16-QAM and 64-QAM are simulated and through various Signal to Noise (SNR) ratio to evaluate the system performance. Various encoding techniques such as Reed Solomon Code, Convolutional Code and Viterbi Decoding [1-6] have been implemented and through simulation to make detailed system performance analysis and comparison. detailed system performance simulation, analysis and comparisons.

A Terrestrial Digital Broadcasting and Positioning System Based on Overlap Communication

2014 ◽  
Vol 568-570 ◽  
pp. 1282-1286
Author(s):  
Guo Cheng Wu ◽  
Zhan Xin Yang ◽  
Wei Zhang Xu
Keyword(s):  
Communication Theory ◽  
Digital Transmission ◽  
Performance Degradation ◽  
Transmission System ◽  
Positioning System ◽  
Navigation Signal ◽  
Performance Deterioration ◽  
Digital Broadcasting ◽  
Simulation Results

Inspired by the overlap communication theory, a new onshore radio positioning system which superimposed on terrestrial digital transmission system is proposed in this paper. This system overlaps but not affects existing terrestrial digital broadcasting.At the receiver, a reconstruction/cancellation algorithm.is implied to capture the navigation signal and positioning measurements precisely.This paper focus on the construction of overlap system,spreading navigation signal and the capture of positioning measurements.We give a method to generate spreading navigation signal and overlap with terrestrial digital transmission system.The method can reduce the performance degradation due to pilot interference. We also proposes a reconstruction/cancellation algorithm which can solution the capture performance deterioration caused by overlapped system . The simulation results show that this system proposed in this paper can be used in terrestrial digital transmission system and provide good positional function.

A high linearity downconverter for digital broadcasting system

2014 ◽  
Vol 35 (12) ◽  
pp. 125010
Author(s):  
Songting Li ◽  
Jiancheng Li ◽  
Xiaochen Gu ◽  
Hongyi Wang ◽  
Zhaowen Zhuang
Keyword(s):  
High Linearity ◽  
Broadcasting System ◽  
Digital Broadcasting

The Old New Television and the New: Digital Transitions at Home

2008 ◽  
Vol 129 (1) ◽  
pp. 91-103 ◽  
Author(s):  
Julian Thomas
Keyword(s):  
Cultural Policy ◽  
Social Economic ◽  
Digital Television ◽  
Policy Problem ◽  
The Past ◽  
Television Broadcasting ◽  
Broadcasting System ◽  
Digital Broadcasting ◽  
Analogue To Digital ◽  
Degree Of Innovation

Over the past decade, a major policy and regulatory problem for governments in Australia and elsewhere has been the implementation of strategies to switch from analogue to digital television broadcasting systems. Despite extensive debate, the transition to digital broadcasting remains fraught. What seems to be a technical matter conceals a range of intractable social, economic and cultural policy decisions. This article explores some of the challenges of digital television through the prism of an earlier, and often overlooked, transformation of television, namely the consumer-driven uptake of what can be called the ‘new television technologies’ of the 1970s and 1980s. These earlier forms of new television help to highlight several arguments: that television was not a stable object prior to digital broadcasting; that the connections between television and broadcasting have been contingent and provisional; and that a remarkable degree of innovation, disruption and adaptation has occurred at the fringes of the broadcasting system, leading to the creation of new audiovisual economies on the boundaries of the household and the market. The article then considers some examples of the ways in which this ‘household sector’ is developing as a new policy problem.

Development of a digital 3D broadcasting system using progressively scanned digital broadcasting

1998 ◽  
Author(s):  
Yukiko Soga ◽  
Hidehiko Kikuchi ◽  
Satoshi Miyabayashi ◽  
Yuji Yamamoto ◽  
Morio Matsudaira ◽  
...  
Keyword(s):  
Broadcasting System ◽  
Digital Broadcasting

scholarly journals Tinjauan terhadap Model Bisnis Penyelenggaraan Penyiaran Tv Digital

2014 ◽  
Vol 5 (1) ◽  
pp. 485
Author(s):  
Daniel P. Hutabarat
Keyword(s):  
Business Model ◽  
Business Models ◽  
Digital Television ◽  
The World ◽  
Broadcasting System ◽  
Digital Broadcasting ◽  
Analogue To Digital

TV broadcast systems are migrating from analogue to digital broadcasting system. Some countries in the world have completed this migration since a few years ago. America decided to stop broadcasting analog television in 2009. In Asia, Singapore launched this technology in 2004 and Malaysia implemented in 2006 (Depkominfo, 2009). With so many countries are migrating to digital broadcasting system, there are many business models that can be referred for organizing digital television broadcasts. In this writing, several business models that are used in the world will be reviewed and analyzed and the results can be a reference to determine the appropriate business model according to the organizers.

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