| 摘要 |
FIELD: radio engineering, communication.SUBSTANCE: transmitter 100 includes an L1 signalling data coder 111. In the L1 signalling data coder 111, an L1 signalling data generator 1021 converts transmission parameters into L1-pre signalling data and L1-post signalling data and outputs the L1-pre signalling data and the L1-post signalling data, an energy dispersion unit 121 performs energy dispersion on the L1-pre signalling data and the L1-post signalling data in order, and an L1 error correction coder 1022 performs error correction coding, based on BCH coding and LDPC coding, on the energy-dispersed L1-pre signalling data. This allows for randomisation of a large bias in mapping data of the L1-pre signalling data and the L1-post signalling data, thus solving the problem of concentration of power in a specific sample within P2 symbols.EFFECT: providing high definition of television broadcast.4 cl, 38 dwg |
