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Re: [Discuss-gnuradio] cross correlation in the time domain and through
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From: |
jmfriedt |
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Subject: |
Re: [Discuss-gnuradio] cross correlation in the time domain and through Fourier tranform ? |
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Date: |
Sun, 25 Jun 2017 11:24:32 +0200 |
as a followup to my own post, some simulation with a smaller FFT size
and synthetic data (as opposed to records from the sound card) do yield
the expected behavior of an FFT analyzer used in cross-correlation
mode: jmfriedt.sequanux.org/test_vector.grc generates a
cross-correlation peak every N samples, here with N=256. At 10 kHz,
that makes for a cross correation peak every 25.6 ms.
JM