FIELD: communications engineering, possible use in information transfer systems.
SUBSTANCE: communication system contains in receiving portion: first synchronous detector, first low frequencies filter, first phase shifter; and in transmitting portion - carrying part source. Aforementioned communication system is additionally provided, in transmitting portion, with power amplifier, directed coupler, first and second modulators, and in receiving portion - with second phase shifter, second synchronous detector, second low frequencies filter, square-law generator, three filters, two subtraction blocks, multipliers and two band amplifiers.
EFFECT: increased precision and guaranteed concealment of communications.
1 dwg
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