If my incoming Signal is of 10KHz with Sampling Rate of 50 KHz , Rational Resampler (Interpolation : 4 , Decimation : 1) gives me the output as signal of 10KHz and Sample Rate of 50*4 = 200 KHz ??????
Thanks everyone and sorry , I couldn't reply you all for inputs you gave me. I apologies for that...
For Now , I kept aside the WBFM project which I asked questions on and working on the Guided Tutorials from GNU Radio and also tutorials from greatScott gadgets video series.
I have a dumb question about Rational Resampler... Here is the snapshot from tutorials website..
As far as I understand , the Rational resampler modifies the sampling rate of the incoming signal based on Interpolation (or) decimation factor.... Is it something like this
Am I Interpreting it correctly... ??????
If thats the case , In the following snapshot , Signal of 1KHz of 48KHz Sample rate is interpolated by factor 4 , Then Output Sampling Rate should be 48*4 = 192KHz which is much higher than the Required Nyquist rate , But the Frequency sink block shows frequency component at 0.25 Hz... Is it because of the "samp_rate" variable set in QT GUI Frequency Sink..
I am also playing around with "samp_rate" block in QT Frequency GUI Sink... If i remove rational resampler and just pass on the signal of 1Khz with 48Khz sampling rate in a QT GUI Frequency sink of samp_rate/4 , it outputs the signal as 0.25KHz ///. why so >
Please let me know If i am interpreting it correctly as THIS IS VERY IMPORTANT FOR ME TO UNDERSTAND..