DIGITAL SIGNAL DEMODULATOR WITH MULTIPLE PHASE SHIFT KEYING Russian patent published in 2022 - IPC H04L27/22 

FIELD: radio engineering.

SUBSTANCE: invention relates to the field of radio engineering and can be used in digital apparatus for receiving information signals with multiple phase shift keying (MPSK). Digital signal demodulator with multiple phase shift keying comprises an analogue-to-digital converter, a register for shifting multi-digit codes by four counts, a first and a second n-cascade quadrature signal processing channels, a clock pulse generator, a normalising apparatus, a digital arctangent shaper, a phase correction unit, a delay unit, a third subtractor, and a code shaper.

EFFECT: implementation of a digital coherent demodulation of a signal with MPSK with potential interference resistance, not requiring phase synchronisation of the apparatus, thereby simplifying the construction of a digital demodulator of signals with MPSK, e.g., on programmable logic devices.

1 cl, 4 dwg