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Better 4 QAM Demodulation - QPSK

@joshinator
1 year ago
https://everycircuit.com/circuit/5292704439336960
QAM demodulation again. This time, I fixed the timing of the local oscillator at the receiver. With the LO (local oscillator) properly timed with the I (in phase) portion of the waveform, the 90 degree phase is generated from the LO, and these are mixed with the signal waveform to extract the amplitude of I and Q. Comments and suggestions are greatly appreciated!
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