modified 1 year ago

Better 4 QAM Demodulation - QPSK

00:30:55

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!

published 1 year ago

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