FIELD: digital signal transmission. SUBSTANCE: cross frequency modulation appears in case when input signal is split into frequency ranges in stages. According to invention method involves weight addition of signals from ranges in which spectral constituents function as information signals and signals in ranges in which these spectral constituents function as components of cross modulation in cut-off frequency range. After transmission signals from frequency ranges are subjected to reverse conversion. EFFECT: increased functional capabilities. 7 cl, 5 dwg
