Digital Terrestrial Television Broadcasting: Technology and System (The ComSoc Guides to Communications Technologies) by

Language: eng
Format: azw3
ISBN: 9781118130537
Publisher: Wiley
Published: 2015-06-29T16:00:00+00:00

Systems ATSC DVB-T ISDB-T DTMB

Interface

Transport stream ISO/IEC 13818-1 (MPEG-TS) transport stream

Transmission system

Outer coding R-S (207,187, t = 10) R-S (204, 188, t = 8) BCH (762,752)

Outer interleaver 52 R-S block interleaver 12 R-S block interleaver

Inner coding Rate 2/3 trellis code Punctured convolutional code: rate 1/2, 2/3, 3/4, 5/6, 7/8, constraint length 7, polynomials (octal) = 171, 133 LDPC code: rate 0.4 (7493,3048), 0.6 (7493,4572), 0.8 (7493,6096)

Inner interleaver 12 to 1 trellis code interleaver Bitwise interleaving and frequency interleaving Bitwise interleaving, frequency interleaving, and selectable time interleaving Symbolwise time-domain convolutional interleaving

Data randomization 16-bit PRBS 15-bit PRBS 15-bit PRBS 15-bit PRBS

Modulation 8-VSB and 16-VSB COFDM

QPSK, 16QAM, and 64QAM

Guard interval 1/32, 1/16, 1/8, and 1/4 of OFDM symbol; 2 modes: 2 k and 8 k FFT BST-OFDM with 13 frequency segments

DQPSK, QPSK, 16QAM, and 64QAM

Guard interval 1/32, 1/16, 1/8, and 1/4 of OFDM symbol; 3 modes: 2 k, 4 k, and 8 k FFT TDS-OFDM and singlecarrier

4QAM-NR, 4QAM, 16QAM, 32QAM, and 64QAM, PN420, PN595, and PN945

2 modes: C = 1 (single carrier) and C = 3780 (multi-carrier)

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