1. Blind estimation method of at least one temporal modulation parameter of an OFDM signal, characterised in that a plurality of demodulation attempts of said OFDM signal are carried out using a plurality of respective values of this temporal parameter and that, for each demodulation attempt, a cost function representative of the entropy of the demodulated signal is calculated, the estimate of said temporal parameter being obtained as the value of this parameter minimising said cost function.