TRANSMISSION SYSTEM OF QUATERNARY CODED RADIO SIGNALS

摘要

FIELD: radio communication technology. SUBSTANCE: given system includes transmission part incorporating clock pulse generator, D code former, former of signals of double-frequency manipulation, modulator, frequency synthesizer, random number generator. Reception part incorporates demodulator, frequency synthesizer, random number generator, signal selector, clock pulse generator, unit extracting additional sequences, double-channel matched filter, subtracter and decision-making unit. EFFECT: widened application field, raised noise immunity an authenticity under effect of jamming in communication channels with unstable parameters. 1 cl, 2 dwg