FIELD: radio equipment.
SUBSTANCE: invention relates to radio engineering and can be used in radio systems with noise-like signals. This method consists in generating binary quasi-orthogonal pseudo-random sequences, synchronizing, additional and information sequences. Number of information PRS elements is selected as product of mutually prime numbers, one of which is equal to number of synchronizing PRS elements, and second – to number of additional PRS elements. All three PRSs are phased to each other by one information PRS period. At each synchronizing PRS period, modulated PRS is formed by shifting the information PRS by the number of elements determined by the transmitted information symbol, and additionally addition modulo two with another bit of information. Synchronizing, additional and modulated PRS are summed up in a majority manner, and the obtained binary sequence is followed by phase shift keying of the carrier frequency signal.
EFFECT: high noise-immunity and reconnaissance protection when exposed to imitating interference.
1 cl, 2 dwg
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