Re: [Discuss-gnuradio] Decode Frequency Modulated Signal

[Marcus Müller]

Hi Gerhard,

if I interpret your interpretation correctly, you assign a 1 to "long period", and a 0 to a "short period"? That would be an FSK inside an FSK; such systems exist (often for things like put data on a readily available FM modulator), but from the picture of your signal it's hard to tell.

What do you know about your signal?

Best regards,
Marcus

On 28.05.2016 21:21, Gerhard wrote:

Hello!

I want to decode a signal that slightly varies in Frequency. Therefore I
used "Quadrature Demod" block. After this, its waveform looks like the
appended image "baudline-waveform.jpg". Although it's a bit fuzzy I
already can decode it with my eyes. Have a look at the appended picture
"decoded-signal.jpg".

My Questions:
* How do I decode the signal to ones and zeros?
* Is the signal O.K. the way I demodulated it, or is it to fuzzy?

Any help is appreciated!


Cheers
  Gerhard

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