Opens in a new tab

AES E-Library

← Back to search

Conference Paper

The Error Protection of DAB

Authors: Weck, Chris

AES Conference: UK 10th Conference: The Future of Radio (DAB) · Paper DAB-05 · May 1995

Abstract

The transmission scheme of DAB was especially developed to allow a mobile reception under multipath propagation conditions. This means that the requirements on the protection of the digital encoded audio bitstream against bit errors are very high. In this contribution the error protection strategy realized for DAB is described: - the principle and performance of unequal error protection on the base of punctured convolution codes: - the influence of additional error detection for the application of error concealment techniques: - the realized protection schemes for the digitally encoded audio signals which are designed with respect to the subjective annoyance of bit errors in the audio bitstream, and: - the various error protection levels within DAB which allow a trade-off between high audio data rate and high transmission reliability or large service area, respectively. The influence of residual bit errors on the subjective degradation of the audio signal depends on the applied unequal error-protection scheme. As a consequence, some objective parameters can be used to estimate the reception quality and, above that, to estimate the edge of the service area.:

Details

Published in
AES Conference: UK 10th Conference: The Future of Radio (DAB)
Paper number
DAB-05
Publication date
May 6, 1995
Session subject
DAB (The Future of Radio)
Affiliation
Institut for Rundfunktechnik, Munchen, Germany (See document for exact affiliation information.)
Type
Conference Paper