Method of estimating the parameters of the blind criterion of ofdm modulation according to a maximum likelihood.

摘要

The present invention relates to a method of estimation blind at least one parameter of an ofdm signal according to a maximum likelihood criterion (ml)). In one embodiment, the estimation method uses a maximum likelihood criterion deterministic. In another embodiment, the method of estimation is assumed that the modulation symbols modulate the under - carriers of the ofdm multiplex are i.i.d and gaussian random variables. The estimation of said parameter is performed by minimising a cost function dependent on the chosen criterion.