Patent ID: 8223865

Claim:
A method of blind estimation of at least one parameter of an OFDM signal comprising a sequence of OFDM symbols, the OFDM signal being baseband demodulated, then sampled during an observation period, the method comprising: forming a vector y of the samples thus obtained; building, for a plurality of possible values of the parameter ( θ ), a matrix H θ that is representative of an OFDM modulation used to generate the signal, the matrix depending on the parameter; and calculating the value of an objective function J ⁡ ( θ _ ) =  H θ _ H ⁢ y  2  H θ _ ⁢ H θ _ H  F , where ∥.∥ is the Euclidean norm, ∥.ν F is the Frobenius norm, and wherein a parameter value that achieves the maximum of the objective function is selected among the possible values of the parameter, the parameter value thus selected providing the estimation of the parameter.