A system for recovering and demodulating a carrier includes a carrier recovery loop and a data detector. The carrier recovery loop receives the carrier as an input and produces a recovered carrier at a frequency approximately equal to that of the carrier. The carrier recovery loop includes a downconverting...http://www.google.fr/patents/US6717462?utm_source=gb-gplus-shareBrevet US6717462 - QPSK and 16 QAM self-generating synchronous direct downconversion demodulator
QPSK and 16 QAM self-generating synchronous direct downconversion demodulator
