A method and device for the demodulation of a multi-carrier signal, the estimation of the channel impulse response and an estimate of the white frequency flow be taken into consideration

摘要

The invention relates to a method for demodulating a multicarrier signal formed of a time sequence of symbols modulating a plurality of carrier frequencies, for a given time interval. & br / according to the invention, the method comprises the following steps: & br / - determination, for each of said symbols and each of said carriers, a first item of information (br / (see appended drawing in bopi) & br / representative of an estimation of the response of the transmission channel, n0 representing the index of the instant of emission and k0 representing the index of the carrier frequency; & br / - determination, for each of said time intervals, a second data item & br / (see appended drawing in bopi) & br / representative of an estimation of the distortion white in frequency; and & br / - division of each symbol to be demodulated yn0, k0 by said first item of information (br / (see appended drawing in bopi) & br / and by the said second item of information (br / (see appended drawing in bopi) & br / , so as to deliver a symbol estimated c | ^ n0, k0.