Objective
Main objective of the project is to finalise the work so that the introduction of a Digital terrestrial TV service in Europe can be as early as possible. In accordance with task AC118 of ACTS programme, the final goal of DVBIRD project is the development of an optimized and integrated chip set to implement a Digital terrestrial TV receiver, according to the DVB-T specification and to the results of the last years of technical activity on COFDM techniques.
Expected Achievement
The immediate outcome of the DVBIRD project will be a prototypal demonstrator.
The major contribution of the project will consist in the possibility to exploit the results of the project in the industrial context in a reasonable time. Furhermore, the project will bring to the specification of an optimised chip-set for terrestrial broadcasting to be industrially exploited soon to allow the introduction of the Digital terrestrial TV service in Europe, that is planned for early 1998.
Expected Impact
The continuously growing importance of Television Broadcasting in the Advanced Communication world is well established. Moreover, the worldwide success of the joint dTTb and HDSAT demonstrations in Montreux (June 9-13th 1995), where all the aspects of digital TV transmission (including terrestrial Single Frequency Networking) were shown for the first time, is a master milestone to strenghten the DVB-T system. In fact the information delivery is actually based on the use of powerful electronic transmission media and protocols; TV is surely one of the most relevant ones, due to the large number of current and potential users. Therefore, it is not only very market attractive, but also mandatory, to push towards a more and more efficient service, to increase the number of users as well as the number and quality of services. The adoption of digital techniques together with the improvements in VLSI technology have made such improvements possible, with a view to defining the future generation Television Service. In addition, some advanced features will bring a very impressive improvement in the type and variety of the service; the Single Frequency Network (SFN) concept, for instance, will allow delivery of a nation-wide programme (or even with a larger coverage) on a single frequency channel, thus greatly increasing the spectrum efficiency and the number of allocatable programmes for a given frequency band.
From all these considerations, the impact of ACTS will be to make possible a set of complex powerful services in the field of Advanced Communications, and so Advanced TV also, at a market-competitive price. Conforming to ACTS objectives, DVBIRD project finalizes the technical work performed inside RACE dTTb and in the framework of DVB by specifying and designing an optimized chip set for Digital Terrestrial TV receivers In this way, DVBIRD supports the introduction of digital terrestrial services on the consumer market. Moreover, the optimisation of currently available architectures or designs, such as a programmable 8KFFT Processor, has been performed to achieve a global cost and complexity reduction of the receiver architecture. The introduction of such a service in Europe will have a very large impact, even in the short term, both from the economic point of view, due to the large market of digital TV, and from the social one, due to the large number of actual and potential users involved in this field.
Main contributions to the programme objectives:
Main deliverables
A chipset and demonstrator of a DVB-T receiver. Specification of the second generator receiver.
Contribution to the programme
Build a chip-set and demonstrator for a DVB-T receiver to demonstrate the feasibility of the standard.
Technical Approach
To reach this goal, the project started from the specification of the second dTTb demonstrator and from the final DVB-T specification, taking into account user requirements and complexity issues and given the definition of the receiver architecture for Digital Terrestrial TV Broadcasting. The main result of this work is the specification, design and prototyping of a first generation chip set for Digital terrestrial TV Broadcasting.
Starting from the complete specification of the Baseline System for Digital Terrestrial TV Broadcasting issued by the DVB in March 1996, a chip partitioning has been defined at the light of the output of the RACE dTTb project.
The digital front-end of the receiver has been splitted into four chips:
- Chip 1, Digital IQ generation & OFDM Demodulation;
- Chip 2, Channel Estimation & Correction;
- Chip 3, Channel Decoder;
- Chip 4, Synchronisation.
To test and implement the functionalities of those chips, thus showing the viability of the proposed approach, a demonstrator for Digital Terrestrial TV Broadcasting (DEM1) is being developed. This demonstrator will be delivered to the VALIDATE project, to carry out field trials for validation purposes. Starting from the results of DEM1, a further architectural study will be carried out, with the purpose to define the specification of a more optimized second generation receiver for Digital Terrestrial TV Broadcasting. based on the latest European submicron technologies. That specification will also take into account the exploitation of commonalities with satellite and cable receiving chains, leading to the definition of guidelines for the implementation of a common receiver.
Summary of Trial
A collaboration with the project VALIDATE, that will be involved in field trials for asessing the specification, has been established. In particular, the DVBIRD demonstrator, which has been conceived to test the performance of the ICs designed and prototyped in the project , will serve at the aim to show the overall system functionality and to test the robustness of the DVB-T specification in the real environment.
Field trials on DVB compliant transmission will be performed jointly with the project ACTS VALIDATE.
Main purpose of those trials will be to tune the parameters of the receiver and to check the transmission/ reception chain in practical cases.
Key Issues Digital Terrestrial TV Broadcasting, DVB-T, COFDM, 2K-8KFFT.
Fields of science (EuroSciVoc)
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: The European Science Vocabulary.
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: The European Science Vocabulary.
- engineering and technology mechanical engineering vehicle engineering aerospace engineering satellite technology
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Coordinator
20041 Agrate B.za
Italy
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