FIELD: radio engineering.
SUBSTANCE: invention relates to the field of radio engineering and can be used in digital devices for receiving information signals with multi-position amplitude-phase shift keying (APSK). The digital signal demodulator with amplitude-phase shift keying additionally contains an analog-to-digital converter, a shift register of multi-bit codes for four samples, the first and second n-cascade channels of quadrature signal processing, a normalizing device, a digital shaper of the arc tangent, a clock pulse generator, the first and second generation units solutions, code generator, quadratic converter, clock block and threshold generator.
EFFECT: implementation of digital coherent signal demodulation with APSK, which does not require phase synchronization of the device, with minimal hardware costs.
1 cl, 9 dwg
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