Dec 6, 2012 #1 A asraf Junior Member level 3 Joined Nov 22, 2010 Messages 30 Helped 0 Reputation 0 Reaction score 0 Trophy points 1,286 Activity points 1,589 hi there, i would like to know the common technique used in QPSK demodulator? Thank you
Dec 7, 2012 #2 C chuckey Advanced Member level 6 Joined Dec 26, 2010 Messages 4,854 Helped 1,309 Reputation 2,624 Reaction score 1,281 Trophy points 1,393 Location Southampton and holiday cottage in Wensleydale (UK Activity points 31,695 A phase locked local oscillator with a balanced mixer? Frank
Dec 7, 2012 #3 A asraf Junior Member level 3 Joined Nov 22, 2010 Messages 30 Helped 0 Reputation 0 Reaction score 0 Trophy points 1,286 Activity points 1,589 hai there, first of all, thanks for your reply. but the things i would like to know is the common technique used in qpsk demodulator? whether maximum likelihood? or log likelihood? or just costas loop with LPF ? thanks in advance
hai there, first of all, thanks for your reply. but the things i would like to know is the common technique used in qpsk demodulator? whether maximum likelihood? or log likelihood? or just costas loop with LPF ? thanks in advance