Method of estimating the phase and the gain in clinical observation transmitted on a transmission channel as a qam modulation

摘要

The invention relates to a method of estimation of the gain and / or of the phase of the observation data (yk) transmitted by modulation qam.on out (a) an iterative estimate the parameters of the phase and / or gain on the basis of a phase law and / or gain, and it is initialized and executes (b) an adaptive process of estimating the parameters of the phase and / or gain, this adaptive process comprising at least one estimation function of these parameters dependent on the value of the probability of probability, expressed in terms of the log - likelihood, each data item of observation (yk) screw - to - screw of the assembly of the bits constituting the modulation symbols qam.application to single-carrier digital transmissions or multicarrier.