And apparatus for digital audio broadcasting system using a complementary pattern-mapped convolutional code

摘要

Method for transmitting digital information, forward error correction code (56), a plurality of carrier signals subjected to forward error correction coding processing information digital multiple bits (54) using complementary pattern-mapped convolutional codes The steps used for modulating a bit that is turned into (62), transmits (75) the modulated carrier signal. The modulation may comprise a step of amplitude modulated independently of each phase and quadrature components of the QAM constellation using Gray code corresponding to the amplitude level. It is also described a receiver of such a signal.