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From: | k1gto |
Subject: | Re: [Discuss-gnuradio] Why is fft output complex? |
Date: | Sun, 12 Oct 2014 01:39:10 +0000 (UTC) |
I can't wrap my head around why fft transform of complex signal produces a complex output. After all the output reflects the amount of energy per frequency bin and frequency bins and energy are both real numbers, no?
I'm trying to write a python script to analyze the energy across frequency bins but I don't know where to insert a complex to mag block. I think if I can understand the fft I will know to put the complex to mag.
Thanks
Brad.
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