Title :
Compatible digital high definition television broadcasting by satellite
Author :
Macq, B. ; Vandendorpe, Luc
Author_Institution :
Lab. de Telecommun., Univ. Catholique de Louvain
Abstract :
A fully digital HDTV (high-definition TV) DTBS (direct TV broadcasting by satellite) system is presented. One of the main characteristics of the system is a dual-channel approach combined with quadrature amplitude modulation. The two channels correspond to normal TV resolution and to the HF complement, the first one being highly compatible with MAC systems. The power is unequally split between the two channels, more power being devoted to the normal TV channel so as to keep normal TV receiving installations rather modest. In order to obtain efficient dual-channel splitting, a noninterlaced signal is used
Keywords :
amplitude modulation; direct broadcasting by satellite; encoding; high definition television; television broadcasting; video signals; MAC systems; digital HDTV; direct TV broadcasting by satellite; dual-channel approach; dual-channel splitting; hybrid DCT coding; noninterlaced signal; normal TV resolution; quadrature amplitude modulation; Amplitude modulation; Bit rate; Delay effects; Frequency modulation; HDTV; High definition video; Region 1; Satellite broadcasting; Signal resolution; TV broadcasting;
Conference_Titel :
Global Telecommunications Conference and Exhibition 'Communications Technology for the 1990s and Beyond' (GLOBECOM), 1989. IEEE
Conference_Location :
Dallas, TX
DOI :
10.1109/GLOCOM.1989.63973
