Re: [Discuss-gnuradio] Need help identifying jammer signal

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On 12/09/2013 07:26 PM, Juha Vierinen wrote:

> I recorded a 10 second snippet of 50 kHz baseband signal in interleaved
> I and Q with 32-bit floating point format.

The signal is definitely frequency modulated, but it doesn't appear to
be by data. Plotting the unwrap(diff(unwrap(arg(s))) shows a repetitive
structure of 10 ms (500 samples) width, as if something is stepping the
frequency up or down at 100 Hz in a random walk.

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Johnathan Corgan, Corgan Labs
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