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Re: [Discuss-gnuradio] Handling of IQ files

From: Marcus Müller
Subject: Re: [Discuss-gnuradio] Handling of IQ files
Date: Sun, 20 Mar 2016 19:20:20 +0100
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Ah, sorry, I sent that piece of email a bit too early.

On 20.03.2016 19:07, Henry Barton wrote:
So every element of the resulting vector will hold the intensity of a 1Hz bit of spectrum?
No, not at all. The N-Point DFT gives you N evenly spaced frequencies that make up the whole Nyquist bandwidth (i.e. the sampling rate $f_s$ in the complex case).
Also, you mentioned what would be in X, but what should vector W contain?
$W$ is the DFT Matrix. Look it up. The wikipedia Article is very illustrative with great visualizations!

Best regards,

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