METHOD OF EXPANDING SPECTRUM OF SIGNALS Russian patent published in 2024 - IPC H04B1/7097 H04J13/00 H04L27/20 

FIELD: radio engineering.

SUBSTANCE: invention relates to radio engineering and can be used in systems for noise-immune data transmission. Method of expanding the spectrum of signals consists in the fact that a clock frequency signal is generated in the form of a meander. From the clock frequency signal, four periodic quasi-orthogonal pseudorandom sequences of pulses (PRS) are formed, which are phased to each other. At each PRS period cyclically shifted copies of PRS are formed. Two composite sequences of pulses are formed by switching copies of two pairs of PRS with a clock frequency signal. Compositional sequences of pulses are phase-keyed two signals of carrier frequency, phase-shifted to each other by ninety degrees, and phase-shift keyed signals are summed. Transmitted digital data are mutually uniquely converted into the difference in values of cyclic shifts of copies of one of the PRS on adjacent periods of the PRS and in the difference in values of copies of all four PRSs on the same period.

EFFECT: high speed of data transfer.

1 cl, 1 dwg