FIELD: physics.
SUBSTANCE: method includes a step for multiplying the carrier signal by at least one subcarrier modulation signal; the said at least one subcarrier modulation signal contains several, m, discrete amplitude levels obtained from or related to m-ary phase bunching, where m>2. Embodiments of the invention relate to a modulation system in which an m-level, m>2, digital subcarrier is used to modulate a signal.
EFFECT: increased noise-immunity in beat interference conditions.
32 cl, 17 dwg
