Yes Damian, i will have to bring it back to NRZ format. Actually Damian i tried absolute component in my work to clip off negative cycle which brings signal to its original form and helps to measure BER. But in this way the only anomaly i will have, is in amplitude of the signal.
And Damian if u know any type of analog demodulation (for example ??) that helps to regenerate NRZ fromat signal also share.
Best Regards