This demodulation self - adaptive signals virtually - orthogonal, demodulation unit and the receiver of radio signals

摘要

The present invention relates to a method of decoding of a data symbol carried by a signal received by a receiver of a communication system, the data symbol being modulated by a sequence of the spreading code selected from among a plurality of sequences of the spreading code (r0 - r15) virtually - orthogonal to each other in order to differentiate between the symbol other data symbols, and received in the form of a set of bits of the modulation, the method comprising a correlation step (corr) of the data symbol received modulated with each of the plurality of the sequence of the spreading code (r0 - r15), and being characterized in that the correlation step is preceded by a sampling step - (sub - sp 1, msq) of the data symbol received modulated in order to conceal one or more of the bits of the modulation, in such a way that the correlation step of the data symbol received under - sampled is only made for the bits of the modulation is not masked. It extends to a demodulation unit (1) is configured for implementing this process, as well as to a receiver incorporating such a unit.