FIELD: radio engineering.
SUBSTANCE: invention relates to the field of radio engineering and is intended for use in anti-jamming radio communication systems. The effect is achieved due to the fact that the subcarriers of the discrete signal of permutation modulation are formed in the spectrum of the noise-immune analog signal of single-sideband modulation. Information bits are transmitted over the upper sideband, on which the single-sideband modulation masking signal is superimposed on the lower sideband, formed on the basis of orthogonal phase-shift keyed frequency subcarriers.
EFFECT: increasing the noise immunity of the transmission of discrete signals of permutation modulation by improving the properties of their structural secrecy.
1 cl, 5 dwg
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