Method of modulation and demodulation of a digital signal, in particular in a frequency band affected by flat fading, associated modulator and demodulator

摘要

A method of modulating a digital signal of width L in frequency on a given useful frequency band is described The digital signal is separated into N blocks b_n (1<=n<=N). The given useful frequency band is split into N contiguous parts P_n. Channels C_n, of width l_n in frequency, lying within an associated part P_n, are defined. The channels C_n are separated, a distributing of each block of digital signals b_n over the associated channel C_n.