By : Kiki Prawiroredjo,Richard Rambung, Tjandra Susila E.E Department – Trisakti University 2013 MILESTONE PERKEMBANGAN TEKNOLOGI TV GLOBAL
TV TECHNOLOGY TV merupakan media yang cost-effective khususnya dalam bidang information, education & entertainment. Menurut catatan ITU; pada tahun 2000 terdapat 1.4 milyar pesawat TV. Saat ini lebih dari 1.4 milyar TV set analog yang digantikan oleh digital set yang menciptakan multi billion dollar bisnis tiap tahunnya dalam bidang peralatan broadcast, elektronika, komputer dan semikonduktor.
Perkembangan Teknologi TV TV Black & White Color TV Stereo Sound HDTV 3D- TV DTV
Color TV Standard NTSC (National Television System Committee) PAL (Phase Alternation Line) SECAM (Sequential and Memory)
Stereo Sound A2 (Two channel sound) -- German Stereo NICAM (Near Instantaneously Companded Audio Multiplex) -- BBC
DTV A.ATSC ( Advanced Television Systems Committee) Country : USA B.DVB (Digital Video Broadcasting) Country : European Union C.ISDB(Integrated Services Digital Broadcasting) Country : Japan D.DTMB( Digital Terrestrial Multimedia Broadcast) Country: China
Related Technical Organization A.ATSC – SCTE ( Society of Cable Telecom Engineer) B.DVB - ETSI (European Telecom, Standard Institute) C.ISDB – ARIB (Association of Radio Industries & Business) D.DMB – China DTV (Technology Research Center & University of Tsinghua)
Comparison of available modes in DVB-T and DVB-T2 DVB-TDVB-T2 FECConvolutional Coding + Reed Solomon 1/2, 2/3, 3/4, 5/6, 7/8 LDPC + BCH 1/2, 3/5, 2/3, 3/4, 4/5, 5/6 ModesQPSK, 16QAM, 64QAMQPSK, 16QAM, 64QAM, 256QAM Guard Interva l 1/4, 1/8, 1/16, 1/321/4, 19/256, 1/8, 19/128, 1/16, 1/32, 1/128 FFT size 2k, 8k1k, 2k, 4k, 8k, 16k, 32k Scatter ed Pilots 8% of total1%, 2%, 4%, 8% of total Contin ual Pilots 2.6% of total0.35% of total Source : DVB Project
SFN Advantages More efficiency of using spectrum frequency Robustness in coverage Simple to manage and allocate frequency (ARFM and Broadcaster) Simple to setup network to coverage for indoor and portable reception
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