ITU-R BT 470-7 FRENCH-2005 Conventional analogue television systems《传统模拟电视系统》.pdf

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1、 Rec. UIT-R BT.470-7 1 RECOMMANDATION UIT-R BT.470-7 Systmes de tlvision analogique classiques (1970-1974-1986-1994-1995-1997-1998-2005) LAssemble des radiocommunications de lUIT, considrant a) quun grand nombre de pays ont tabli des services de tlvision couleur qui donnent satisfaction, sur la base

2、 de systmes NTSC, PAL ou SECAM; b) quune plus grande multiplicit des systmes compliquerait lchange des programmes, recommande 1 que les administrations dsireuses de mettre en oeuvre un systme de tlvision couleur composite analogique choisissent les spcifications radiofrquence de lun des systmes de t

3、lvision dfinis dans la Recommandation UIT-R BT.1701 Caractristiques des signaux rayonns par les systmes de tlvision analogique classiques; et 2 que les administrations choisissent les caractristiques des signaux vido de production correspondantes dfinies dans la Recommandation UIT-R BT.1700 Caractristiques des signaux vido composites pour les systmes de tlvision analogique classiques. _

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