DEMODULATOR OF SIXTEEN-POSITION QUADRATURE AMPLITUDE KEYED SIGNALS

摘要

FIELD: radio engineering. SUBSTANCE: demodulator has first and second phase detectors, first and second low-frequency filters, first through tenth comparators, 90 deg. phase shifter, decoder, first through sixth counters, and comparison unit. KAM-16 input signal level is maintained at desired level corresponding to optimal decision zones. EFFECT: enhanced noise immunity of signal demodulator. 5 dwg