FIELD: radio engineering.
SUBSTANCE: device has a controlled pulse generator, two delay registers, a sign-determining device, a digital filter, a multiplier, a decision unit, random-access memory, an analogue-to-digital converter, two subtractors, a divider, a frequency halver, an inverter and an adder.
EFFECT: high noise immunity when receiving quadrature-amplitude and phase keyed signals.
4 dwg
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