METHOD FOR THE BLIND ESTIMATION OF OFDM SIGNAL PARAMETERS BY ADAPTED FILTERING

摘要

The invention relates to a method for the blind estimation of at least one parameter of an OFDM signal by maximising an objective function depending on said parameter. The objective function implements a calibrated model of the OFDM modulation and an adapted filtering corresponding to said model. The OFDM signal, which is base-band demodulated and sampled in an observation window, is subjected to the adapted filtering for calculating the objective function. It is also proposed to include in the calibrated model the time offset between the observation window and an OFDM symbol as well as the frequency offset between the carrier frequency of the OFDM signal and the base-band demodulation frequency.