|Subject:||Re: [Discuss-gnuradio] Splitting a vector at the output of the FFT|
|Date:||Wed, 18 Mar 2015 16:52:51 +0100|
|User-agent:||Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.5.0|
are you sure you want to use the FFT sinks?
They basically "just" internally put the sample stream into vectors of fftlen length, then calculate the dB(abs(fft(these vectors))), and display the result.
What you're describing sounds more like you'd want to use the standalone, not-graphical-sink FFT block.
The FFT is defined as most of the time in DSP: each bin corresponds to a specific exponent in the complex exponential function, ie. e^(j*n_bin*omega); compare .
On 03/18/2015 04:31 PM, Alejandro Pascual Laguna wrote:
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