Title :
Source coding, channel coding and modulation techniques used in the DigiCipher system
Author :
Krauss, Jeffrey A.
Author_Institution :
Telecommun. & Technol. Policy, Rockville, MD, USA
fDate :
12/1/1991 12:00:00 AM
Abstract :
The DigiCipher high-definition television (HDTV) system, an all-digital approach that achieves full HDTV performance with error-free reception in a single 6-MHz television channel is described. The DigiCipher HDTV system is based on discrete cosine transform coding and uses motion prediction techniques to eliminate redundancy in the digital signal, channel equalization to defeat multipath, and error correction to defeat noise and interference. The source signal, source coding, channel coding, modulation, and performance of the system are discussed
Keywords :
encoding; high definition television; modulation; 6 MHz; DigiCipher HDTV system; channel coding; channel equalization; discrete cosine transform coding; error correction; error-free reception; high-definition television; modulation techniques; motion prediction; source coding; source signal; Bandwidth; Channel coding; Discrete cosine transforms; HDTV; Modulation coding; Pixel; Quadrature amplitude modulation; Satellite broadcasting; Source coding; TV;
Journal_Title :
Broadcasting, IEEE Transactions on
