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Re: [Discuss-gnuradio] Need help identifying jammer signal
From: |
Johnathan Corgan |
Subject: |
Re: [Discuss-gnuradio] Need help identifying jammer signal |
Date: |
Tue, 10 Dec 2013 13:55:45 -0800 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:24.0) Gecko/20100101 Thunderbird/24.1.1 |
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.
--
Johnathan Corgan, Corgan Labs
SDR Training and Development Services
http://corganlabs.com
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- [Discuss-gnuradio] Need help identifying jammer signal, Juha Vierinen, 2013/12/06
- Re: [Discuss-gnuradio] Need help identifying jammer signal, Johnathan Corgan, 2013/12/06
- Re: [Discuss-gnuradio] Need help identifying jammer signal, Patrik Tast, 2013/12/08
- Re: [Discuss-gnuradio] Need help identifying jammer signal, Juha Vierinen, 2013/12/09
- Re: [Discuss-gnuradio] Need help identifying jammer signal, Ralph A. Schmid, dk5ras, 2013/12/09
- Re: [Discuss-gnuradio] Need help identifying jammer signal,
Johnathan Corgan <=
- Re: [Discuss-gnuradio] Need help identifying jammer signal, Miki Lustig - KK6GEO, 2013/12/10
- Re: [Discuss-gnuradio] Need help identifying jammer signal, Johnathan Corgan, 2013/12/11
- Re: [Discuss-gnuradio] Need help identifying jammer signal, Juha Vierinen, 2013/12/17
- Re: [Discuss-gnuradio] Need help identifying jammer signal, Ralph A. Schmid, dk5ras, 2013/12/18
- Re: [Discuss-gnuradio] Need help identifying jammer signal, Patrik Tast, 2013/12/18