Publication

Combined multiresolution source coding and modulation for digital broadcast of HDTV

Martin Vetterli
1992
Journal Articles

Abstract

A practical end-to-end all-digital multiresolution system is demonstrated that employs joint source-channel coding and modulation in order to achieve efficient broadcast of digital HDTV. The threshold effect plaguing single resolution systems is softened by a stepwise graceful degradation. This can be used to increase the coverage and robustness of the digital broadcast system. This approach is seen as an alternative to traditional single resolution digital transmission systems which are not designed for broadcast situations, and which suffer from the threshold effect. This paper highlight the benefits of using ans embedded multiresolution modulation constellation over a modulation scheme that resort to time or frequency multiplexing of the broadcast resolution. Besides showing coding results and simulation of transmission effects, the paper discusses the trade-offs between low and high resolution coverage

Official source

https://infoscience.epfl.ch/entities/publication/ab7c4fef-bf6c-4993-a686-93e42b509092

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Martin Vetterli
1992
Journal Articles

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/ab7c4fef-bf6c-4993-a686-93e42b509092

About this result

Related concepts (15)

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Digital Audio Broadcasting (DAB) is a digital radio standard for broadcasting digital audio radio services in many countries around the world, defined, supported, marketed and promoted by the WorldDAB organisation. The standard is dominant in Europe and is also used in Australia, and in parts of Africa and Asia; as of 2022, 55 countries are actively running DAB broadcasts. DAB was the result of a European research project and first publicly rolled out in 1995, with consumer-grade DAB receivers appearing at the start of this millennium.

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Combined multiresolution source coding and modulation for digital broadcast of HDTV

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