Electronics & Communication Engineering Journal
Volume 10, Issue 6, December 1998
Volumes & issues:
Volume 10, Issue 6
December 1998
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- Source: Electronics & Communication Engineering Journal, Volume 10, Issue 6, p. 250 –251
- DOI: 10.1049/ecej:19980601
- Type: Article
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- Author(s): R. Schafer
- Source: Electronics & Communication Engineering Journal, Volume 10, Issue 6, p. 253 –262
- DOI: 10.1049/ecej:19980602
- Type: Article
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253
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The Moving Pictures Experts Group (MPEG), which produced the MPEG-1 and MPEG-2 video and audio compression standards, is developing the MPEG-4 standard. MPEG-4 targets interactive multimedia applications and will become a standard in 1999. As well as an increased compression efficiency, MPEG-4 will also offer content-based functionality, i.e. the possibility of accessing and manipulating individual objects in the picture. Furthermore, MPEG-4 will offer possibilities for efficient video storage and for transmission over poor audio and video channels at bit rates between 5 kbit/s and 4 Mbit/s. This paper gives an overview of the state of the art of MPEG-4 development, concentrating especially on video content-based functionality, which is so important for interactive applications. - Author(s): W.H.W. Tuttlebee and D.A. Hawkins
- Source: Electronics & Communication Engineering Journal, Volume 10, Issue 6, p. 263 –276
- DOI: 10.1049/ecej:19980603
- Type: Article
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p.
263
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The commercial advent of digital broadcast radio in the UK is upon us. The concepts and technology of digital audio broadcasting, DAB, originated from the European Eureka 147 project, which began in 1988 and which has created international standards now adopted by ETSI and the ITU. In the UK today the BBC provides DAB coverage to some 60% of the population. A DAB licence for independent radio broadcasting has been awarded to a consortium called Digital 1 which will offer a similar level of coverage within 12 months. Digital radio had been held back by a lack of consumer receivers. High-end consumer products are, however, now beginning to appear in the shops. This paper describes the development of a world-leading, credit-card-sized DAB OEM receiver module that is already allowing new players and consumer products to enter the market. - Author(s): T.B. Jones
- Source: Electronics & Communication Engineering Journal, Volume 10, Issue 6, p. 277 –287
- DOI: 10.1049/ecej:19980604
- Type: Article
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277
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Early studies of the auroral zone ionosphere were undertaken at Tromso in Northern Norway by Sir Edward Appleton during the Second Polar Year (1932-33). The sounding radars employed were based on the principle of radiowave reflection by the ionospheric layers. During the last 30 years a new generation of radars has been developed, based on the principle of `coherent' and `incoherent' scatter by irregularities in ionospheric plasma. Two of these new systems are described. The EISCAT Svalbard Radar (ESR) is a UHF incoherent scatter radar, which extends the present EISCAT viewing area from the auroral zone well into the polar cap. The second system is the CUTLASS HF coherent radar, which provides a large viewing area including both the auroral zone and polar cap regions. Some of the exciting new results obtained with these radars are discussed in detail. - Source: Electronics & Communication Engineering Journal, Volume 10, Issue 6, page: 288 –288
- DOI: 10.1049/ecej:19980605
- Type: Article
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- Author(s): H. Cruickshank ; H. Pan ; Z. Sun ; B.G. Evans ; J.P. Bodin
- Source: Electronics & Communication Engineering Journal, Volume 10, Issue 6, p. 289 –296
- DOI: 10.1049/ecej:19980606
- Type: Article
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p.
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The objective of the THESEUS project is to develop a terminal that enables stock brokers located in Europe to communicate not only with their national stock exchange, but also with all the other European stock exchanges. Such a terminal is necessary to put into practice the EC directives concerning the opening of the European capital market. This paper presents an overview of the THESEUS terminal design strategy. It focuses on the communication protocol stack design and the implementation of broadband network access. The first European demonstration, using national host access facilities, was conducted successfully in January 1998. An overview of this demonstration is presented.
Read today about tomorrow's systems
MPEG-4: a multimedia compression standard for interactive applications and services
Consumer digital radio: from concept to reality
Recent advances in radar studies of the polar ionosphere
Calendar
THESEUS terminal-access to broadband networks for European stock exchanges
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