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common or conventional QPSK demodulator

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asraf

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hi there,

i would like to know the common technique used in QPSK demodulator? Thank you
 

asraf

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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
 

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