Coding Algorithms and VLSI Implementations for Digital TV and HDTV Satellite Broadcasting
作者:
Hans Georg Musmann,
Peter Pirsch,
期刊:
European Transactions on Telecommunications
(WILEY Available online 1993)
卷期:
Volume 4,
issue 1
页码: 11-21
ISSN:1124-318X
年代: 1993
DOI:10.1002/ett.4460040108
出版商: Wiley Subscription Services, Inc., A Wiley Company
数据来源: WILEY
摘要:
AbstractSource coding techniques for reducing the bit rates of TV and HDTV signals are presented and discussed with respect to satellite broadcasting applications. The source coding techniques require transmission bit rates of 9 Mbit/s for a TV and 45 Mbit/s for an HDTV signal in order to provide distribution quality as required for broadcasting. Also three scalable coding schemes are outlined which allow graceful degradations at the boundary of the broadcasting service area by a transition from a HDTV to TV picture resolution. VLSI implementations of TV and HDTV decoders have been investigated in order to achieve compact and low cost realization. It is shown that the silicon area of VLSI devices can be kept small by choosing algorithms with small signal processing requirements and by taking advantage of a priori known features. VLSI architectures for the implementation of subband filters and DCT are discussed as key components.
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