FIELD: radio engineering.
SUBSTANCE: invention relates to radio engineering and may be used in signals receiving digital devices with multi-position amplitude-differential phase shift keying (ADPSK). Amplitude-differential phase-shift keying digital signal demodulator additionally contains delay unit, third subtraction unit, first and second solution forming units, code forming unit, square converter, clock synchronization unit, threshold generation unit.
EFFECT: invention provides high-speed digital coherent signal demodulation performed by means of multi-position ADPSK without requiring phase synchronization of the device, which simplifies a signals digital demodulator construction performed by means of multi-position ADPSK, for example on programmable logic integrated circuits.
1 cl, 9 dwg
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