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Sistemas de transmisión digital de televisión terrestre


Sistemas de transmisión digital de televisión terrestre

La ARIB (Association of Radio Industries and Businesses) ha estandarizado el sistema ISDB-T (Terrestrial Integrated Services Digital Broadcasting) en Japón.

Formatos ISDB
  formato pixels horizontales Lineas verticales aspect
ratio		 scan mode frame rate2
HDTV 1125i 1920 1080 16:9 interlaced 29.97 Hz
1125i 1440 1080 16:9 interlaced 29.97 Hz
750p 1280 720 16:9 progressive 59.94 Hz
SDTV 525p 720 480 16:9 progressive 59.94 Hz
525i 720 480 16:9 interlaced 29.97 Hz
525i 544 480 16:9 interlaced 29.97 Hz
525i 480 480 16:9 interlaced 29.97 Hz
525i 720 480 4:3 interlaced 29.97 Hz
525i 544 480 4:3 interlaced 29.97 Hz
525i 480 480 4:3 interlaced 29.97 Hz

En EE. UU. se ha implantado un sistema estandarizado por el ATSC que utiliza una modulación 8-VSB (8 Level Vestigial Side Band) para la transmisión terrestre.

Formato ATSC
  formato pixels horizontales Lineas verticales aspect
ratio		 scan mode frame rate
HDTV 1080p 1920 1080 16:9 progressive 23.976 Hz
1080p 1920 1080 16:9 progressive 24 Hz
1080p 1920 1080 16:9 progressive 29.97 Hz
1080p 1920 1080 16:9 progressive 30 Hz
1080i 1920 1080 16:9 interlaced 29.97 Hz
1080i 1920 1080 16:9 interlaced 30 Hz
720p 1280 720 16:9 progressive 23.976 Hz
720p 1280 720 16:9 progressive 24 Hz
720p 1280 720 16:9 progressive 29.97 Hz
720p 1280 720 16:9 progressive 30 Hz
720p 1280 720 16:9 progressive 59.94 Hz
720p 1280 720 16:9 progressive 60 Hz
SDTV 480p 704 480 16:9 progressive 23.976 Hz
480p 704 480 16:9 progressive 24 Hz
480p 704 480 16:9 progressive 29.97 Hz
480p 704 480 16:9 progressive 30 Hz
480p 704 480 16:9 progressive 59.94 Hz
480p 704 480 16:9 progressive 60 Hz
480i 704 480 16:9 interlaced 29.97 Hz
480i 704 480 16:9 interlaced 30 Hz
480p 704 480 4:3 progressive 23.976 Hz
480p 704 480 4:3 progressive 24 Hz
480p 704 480 4:3 progressive 29.97 Hz
480p 704 480 4:3 progressive 30 Hz
480p 704 480 4:3 progressive 59.94 Hz
480p 704 480 4:3 progressive 60 Hz
480i 704 480 4:3 interlaced 29.97 Hz
480i 704 480 4:3 interlaced 30 Hz
480p 640 480 4:3 progressive 23.976 Hz
480p 640 480 4:3 progressive 24 Hz
480p 640 480 4:3 progressive 29.97 Hz
480p 640 480 4:3 progressive 30 Hz
480p 640 480 4:3 progressive 59.94 Hz
480p 640 480 4:3 progressive 60 Hz
480i 640 480 4:3 interlaced 29.97 Hz
480i 640 480 4:3 interlaced 30 Hz

En Europa, la EBU (European Broadcasting Union), el ETSI (European Telecommunications Standards Institute) y el CENELEC (European Committee for Electrotechnical Standardization) han implantado el proyecto DVB. (formatos de DVB MPEG-2/H.264 AVC). Para la transmisión terrestre se recurre al estándar DVB-T (Digital Video Broadcasting Terrestrial).


Formatos DVB (MPEG-2 screen resolution)
  formato pixels horizontales Lineas verticales aspect
ratio		 scan mode frame rate
(Hz)
HDTV 1152i(2) 1440 1152 16:9 interlaced 25
1080p 1920 1080 16:9 progressive 23.976
1080p 1920 1080 16:9 progressive 24
1080p 1920 1080 16:9 progressive 29.97
1080p 1920 1080 16:9 progressive 30
1080i 1920 1080 16:9 interlaced 29.97
1080i 1920 1080 16:9 interlaced 30
1080p 1920 1080 16:9 progressive 25
1080i 1920 1080 16:9 interlaced 25
1035i 1920 1035(1) 16:9 interlaced 25
1035i 1920 1035(1) 16:9 interlaced 29.97
1035i 1920 1035(1) 16:9 interlaced 30
720p 1280 720 16:9 progressive 23.976
720p 1280 720 16:9 progressive 24
720p 1280 720 16:9 progressive 29.97
720p 1280 720 16:9 progressive 30
720p 1280 720 16:9 progressive 59.94
720p 1280 720 16:9 progressive 60
720p 1280 720 16:9 progressive 25
720p 1280 720 16:9 progressive 50
SDTV 576p(2) 720 576 16:9 progressive 24
576p 720 576 16:9 progressive 25
576p 720 576 16:9 progressive 50
576p(2) 720 576 4:3 progressive 24
576p 720 576 4:3 progressive 25
576p 720 576 4:3 progressive 50
576i 720 576 16:9 interlaced 25
576i 720 576 4:3 interlaced 25
576p 544, 480, 352 576 16:9, 4:3 progressive 24(2), 25
576i 544, 480, 352 576 16:9, 4:3 interlaced 25
480p 720 480 16:9, 4:3 progressive 23.976, 24,
29.97, 30,
59.94, 60
480i 720 480 16:9, 4:3 interlaced 29.97, 30
480p 640 480 4:3 progressive 23.976, 24,
29.97, 30,
59.94, 60
480i 640 480 4:3 interlaced 29.97, 30
480p 544, 480, 352 480 16:9, 4:3 progressive 23.976, 29.97
480i 544, 480, 352 480 16:9, 4:3 interlaced 29.97
LDTV 288p 352 288 16:9, 4:3 progressive 24(2), 25
240p 352 240 16:9, 4:3 progressive 23.976, 29.97



Formatos DVB ( H.264/AVC screen resolution)
formato pixels horizontales Lineas verticales aspect
ratio		 scan mode frame rate
(Hz)		 H.264/AVC level
1080p 1920, 1440, 1280, 960 1080 16:9 progressive 23.976, 24 4
1080p 1920, 1440, 1280, 960 1080 16:9 progressive 25 4
1080i 1920, 1440, 1280, 960 1080 16:9 interlaced 25 4
1080i 1920, 1440, 1280, 960 1080 16:9 interlaced 29.97, 30 4
720p 1280, 960, 640 720 16:9 progressive 23.976, 24,
29.97, 30,
59.94, 60		 4
720p 1280, 960, 640 720 16:9 progressive 25, 50 4
576p 720 576 16:9, 4:3 progressive 50 4
576p 720, 544, 480, 352 576 16:9, 4:3 progressive 25 3
576i 720, 544, 480, 352 576 16:9, 4:3 interlaced 25 3
480p 720 480 16:9, 4:3 progressive 59.94, 60 4
480p 720, 640, 544, 480, 352 480 16:9, 4:3 progressive 23.976, 24,
29.97, 30		 3
480i 720, 640, 544, 480, 352 480 16:9, 4:3 interlaced 29.97, 30 3
288p 352 288 4:3 progressive 25, 50 3
288i 352 288 4:3 interlaced 25 3
240p 352 240 4:3 progressive 23.976, 24,
29.97, 30,
59.94, 60		 3
240i 352 240 4:3 interlaced 29.97, 30 3
  
© 2005 FJMInformacion Legal