|From:||Alejandro Pascual Laguna|
|Subject:||[Discuss-gnuradio] Splitting a vector at the output of the FFT|
|Date:||Wed, 18 Mar 2015 15:31:11 +0000|
I am a newbie in this community so I may pose a very simple question...
I am trying to split via GUI the output vector of the FFT block in two halves, one with the upper part and one with the lower part -i.e. I don't want a duplicate of the output vector-. Say I have a FFT of 1024 points, how do I split the output into the first 512 points and the final 512 points? This leads me to the related question of how is the FFT implemented: is the DC component coming first and then the positive part of the spectrum with fftSize/2 samples to be finally followed by fftSize/2-1 of the negative part? Or is it some other way? Moreover, is it normalized by the number of points?
Thank you very much.
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