Pulse Amplitude Modulation (PAM) Archives | Page 3 of 3 | Wireless Pi

The blue line is the signal template and while red is the matched filter. Notice the same magnitude on each spectral line but exactly opposite phase

July 18, 2016 DSP / Wireless/SDR

Demodulation – From Signals Back to Numbers

Remember that in the article on correlation, we discussed that correlation of a signal with proper normalization is maximum with

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Illustration of peak ISI and asymmetry about -3dB point

July 18, 2016 DSP / Wireless/SDR

Pulse Shaping Filter

From the previous articles, we have seen how a Tx generates a signal from the numbers and the Rx recovers

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