Suggestion of some basic documents on GNU Radio modulation for baseband signal generation.

[Khalilur Rahman]

Hello Everyone,

I hope everyone is doing well. I have a request to ask you guys.

I need to generate a baseband signal (I-Q) by using digital modulation techniques like QPSK. I did generate the signal. However, I do not have that much basic about how does it actually working. From source to sink points. I follow-up on the tutorial but still do not get the real idea behind it ( mapping points, amplitude, frequency, pulse shaping and etc).

So my request is to you how can I get these ideas behind it in prospect to GNU Radio. I did read something from books on digital modulation but I found myself a bit different ideas with GNU Radio. 

Would anyone like to share some documents on that with the related environment with GNU Radio of course. Thank you in advance.

Sincerely,

Khalil

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