DEVICE FOR TRANSMISSION OF FOUR-CODED RADIO SIGNALS Russian patent published in 2020 - IPC H04L27/36 H04L27/26 

FIELD: electrical communication engineering.

SUBSTANCE: invention relates to communication engineering and can be used in synchronous and asynchronous communication systems as a system for transmitting discrete information when exposed to deliberate interference. System comprises, in a transmitting part, a clock pulse generator 1, D-code generator 2, a double frequency manipulation signal generator 3, modulator 4, frequency synthesizer 5, pseudorandom number generator 6, in the receiving part - demodulator 8, frequency synthesizer 9, pseudo-random number generator 10, signal selector 11, a clock pulse generator 12, a unit for extracting additional sequences 13, a two-channel matched filter 14, subtracter 15, a unit for forming inter-correlation functions 16, a convolution unit of inter-correlation functions 17, an adder of autocorrelation functions 18, decision unit 19.

EFFECT: technical result is high noise-immunity when exposed to deliberate interference by compensation thereof by satisfying the orthogonality condition along the code structure of the four-coded sequences.

3 cl, 7 dwg