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Re: [Discuss-gnuradio] carrier-tracking on FSK
From: |
George Barrinuevo |
Subject: |
Re: [Discuss-gnuradio] carrier-tracking on FSK |
Date: |
Thu, 19 Apr 2007 23:43:27 -0700 (PDT) |
I found it. This is what I found on FM/FSK
carrier-tracking:
audio_rate = 20000;
alpha = 5 * 0.25 * math.pi / (audio_rate);
beta = alpha * alpha / 4.0
max_freq = -2.0*math.pi*18970/audio_rate;
min_freq = -2.0*math.pi*19030/audio_rate;
stereo_carrier_pll_recovery =
gr.pll_carriertracking_cc(alpha,beta,max_freq,min_freq);
stereo_carrier_pll_recovery.squelch_enable(False);
There is also gr_pll_refout_cc and gr_pll_freqdet_cf.
Thanks,
--- George Barrinuevo <address@hidden> wrote:
> Hello,
>
> I just created my first 2-level FSK demodulator and
> would like to add carrier-tracking to find the
> carrier
> frequency. Since some RF signals are offset by
> about
> 5kHz. I need a way to zero in on the frequency to
> compensate for the offset. Is there a block that
> performs this function? Or, can someone point me in
> the right direction?
>
> Thanks,
>
> George Barrinuevo
> address@hidden
>
>
>
> _______________________________________________
> Discuss-gnuradio mailing list
> address@hidden
>
http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
>
George Barrinuevo
address@hidden