Hello All
I have designed a bandpass signal at carrier frequency of 12KHz and with
bandwidth of 8KHz. This signal is convolutionaly encoded with rate 1/2
encoder and QPSK modulation.
I do not know how to add noise to this signal. i.e.
y=x+sigma*randn(size(x));
where x is my bandpass signal, which is real. I do not know how to find
this scaling factor sigma and what should be my noise?
Your opinion matters a lot.
Thanks
Chintan
