METHOD FOR GENERATING AND DETECTING A SYNC PULSE OF A PHASE-SHIFT KEYED SIGNAL Russian patent published in 2023 - IPC H04L27/18 

FIELD: communications.

SUBSTANCE: on the transmitting side, the formation of the DPSI sequence, with which the phase of the carrier frequency of the clock pulse is modulated, is carried out by bitwise multiplication of one of the Walsh sequences Wk with one of the sequences of the full DPM_SI code, and on the receiving side, the sequence DPSI, the correlation function of the DPM_SI with the sequence Wk is calculated, then the sum of the moduli of the correlation functions of the DPH sequence with all sequences Wj is calculated, for j≠ k, the obtained sum of modules of correlation functions is subtracted from the first calculated correlation function, and if the resulting difference is greater than zero, then a detection sign is formed.

EFFECT: ensuring the absence of false detections of a noise-like signal sync pulse associated with the correlation properties of the modulating sequences.

1 cl, 1 dwg, 3 tbl