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Extra info for Digital Video Broadcasting (DVB); Framing structure, channel coding and modulation for digital terrestrial television

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Rel. a. a. a. a. a. a. a. a. a. a. a. a. a. a. 8 -3,9 -32,8 -3,9 -32,8 -3,9 -32,8 -3,9 -32,8 -3,9 -32,8 9 +3,9 -32,8 +3,9 -32,8 +3,9 -32,8 +3,9 -32,8 +3,9 -32,8 10 +4,25 -64,9 +4,25 -64,9 +4,25 -66,9 +4,25 -66,1 +4,25 -59,9 11 +5,25 -76,9 +5,25 -76,9 +5,25 -76,2 +5,25 -78,7 +5,25 -69,9 12 +6,25 -76,9 +6,25 -76,9 +6,25 -76,9 +6,25 -78,7 +6,25 -72,4 13 +10,25 -76,9 +10,25 -76,9 +10,25 -76,9 +11,25 -78,7 +11,25 -72,4 14 +12 -100 +12 -100 +12 -100 +12 -100 +12 -100 NOTE 1: Lower end of lower adjacent channel.

Rel. level rel. freq. rel. level rel. freq. rel. level rel. freq. rel. level rel. freq. rel. a. a. a. a. a. a. a. a. a. a. a. a. a. a. 8 -3,9 -32,8 -3,9 -32,8 -3,9 -32,8 -3,9 -32,8 -3,9 -32,8 9 +3,9 -32,8 +3,9 -32,8 +3,9 -32,8 +3,9 -32,8 +3,9 -32,8 10 +4,25 -64,9 +4,25 -64,9 +4,25 -66,9 +4,25 -66,1 +4,25 -59,9 11 +5,25 -76,9 +5,25 -76,9 +5,25 -76,2 +5,25 -78,7 +5,25 -69,9 12 +6,25 -76,9 +6,25 -76,9 +6,25 -76,9 +6,25 -78,7 +6,25 -72,4 13 +10,25 -76,9 +10,25 -76,9 +10,25 -76,9 +11,25 -78,7 +11,25 -72,4 14 +12 -100 +12 -100 +12 -100 +12 -100 +12 -100 NOTE 1: Lower end of lower adjacent channel.

The shortened BCH code may be implemented by adding 60 bits, all set to zero, before the information bits input of an BCH(127,113, t = 2) encoder. After the BCH encoding these null bits shall be discarded, leading to a BCH code word of 67 bits. e. e. E[c Ɨ cāˆ—] = 1. Every TPS carrier is DBPSK modulated and conveys the same message. The DBPSK is initialized at the beginning of each TPS block. The following rule applies for the differential modulation of carrier k of symbol l ( l > 0 ) in frame m: - if sl = 0, then Re{cm,l,k} = Re{cm,l-1,k}; Im{cm,l,k} = 0; - if sl = 1, then Re{cm,l,k} = -Re{cm,l-1,k}; Im{cm,l,k} = 0.

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