METHOD OF BLINDLY ESTIMATING OFDM SIGNAL PARAMETERS BY ADAPTIVE FILTERING.

摘要

The present invention relates to a blind estimation method of at least one parameter of an OFDM signal by maximizing an objective function depending on this parameter. The objective function implements a parameterized model of the OFDM modulation and adapted filtering corresponding to this model. The OFDM signal, demodulated in baseband and sampled in an observation window is the subject of the filtering adapted to calculate the objective function. It is also proposed to include in the parameterized model the time offset between the observation window and an OFDM symbol as well as the frequency offset between the frequency of the OFDM signal carrier and the baseband demodulation frequency.