Technical advances in digital audio radio broadcasting

C. Faller1,2, Biing-Hwang Juang3,2, P. Kroon2,1, Hui-Ling Lou2,4, S.A. Ramprashad1,2, C.-E.W. Sundberg2
1Agere Systems, Berkeley Heights, NJ, USA
2Bell Laboratories, Murray Hill, NJ, USA
3Avaya Laboratories Research, Basking Ridge, NJ, USA
4Marvell Semiconductors, Sunnyvale, CA, USA

Tóm tắt

The move to digital is a natural progression taking place in all aspects of broadcast media applications from document processing in newspapers to video processing in television distribution. This is no less true for audio broadcasting which has taken a unique development path in the United States. This path has been heavily influenced by a combination of regulatory and migratory requirements specific to the U.S. market. In addition, competition between proposed terrestrial and satellite systems combined with increasing consumer expectations have set ambitious, and often changing, requirements for the systems. The result has been a unique set of evolving requirements on source coding, channel coding, and modulation technologies to make these systems a reality. This paper outlines the technical development of the terrestrial wireless and satellite audio broadcasting systems in the U.S., providing details on specific source and channel coding designs and adding perspective on why specific designs were selected in the final systems. These systems are also compared to other systems such as Eureka-147, DRM, and Worldspace, developed under different requirements.

Từ khóa

#Radio broadcasting #Satellite broadcasting #Frequency modulation #Digital audio broadcasting #Electromagnetic radiation #Digital video broadcasting #TV broadcasting #Telephony #Source coding #Modulation coding

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