Forum: GNU Radio Re: Basic question about carrier synchronize in PM de

Posted by ikjtel (Guest)
on 2013-02-02 14:54
(Received via mailing list)
> So, my question is how to remove carrier offset in the I/Q signals.

If your frequencyoffset is Fo, you'll need to develop a "local 
oscillator" signalat frequency-Fo andfeed that to one input of a 
mixer/modulator [multiplier] stage (the other input being your original 
signal). The output of the mixer would be the desired signal, with 
offset removed...


The actual mixing is usually trivial; the more challenging problem is 
generallyhow to extract the value of [-]Fo (perhaps a PLL?). This 
problem is treated extensively in the literature...


Max
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