transmitter, transmission method that performs coding by at least one error correction code and performs digital data transmission, and, receiver.

摘要

transmitter, transmission method that performs coding by at least one error correction code and performs digital data transmission, and, receiver to prevent degradation of transmission features by arranging signal points more appropriately for each error correction code by using a ldpc code from so that its coding rate is such a specific value with 27/40. the ldpc code is submitted to, for example,16apsk modulation or 32apsk modulation and transmitted. the signal points of 16apsk and 32apsk modulations are arranged in more suitable positions for each rate's ldpc code and coding. the invention can be applied to, for example, a digital broadcasting system B.