https://goo.gl/p0CM5J
Just on my google drive for now. I simplified some things for 4FSK only, so
some of the dynamics are fixed set.
On Wed, Mar 23, 2016 at 7:50 PM, Brady O'Brien <brady.obrien...@gmail.com>
wrote:
> Where are you hosting your port at? There was a one-liner bug in the C fsk
> modem having to do with the frequency estimation that you may be running in
> to.
>
> On Wed, Mar 23, 2016 at 7:13 PM, Steve <coupaydevi...@gmail.com> wrote:
>
>> > If you want to mess around with it yourself, the frequency estimation
>> happens in fsk_demod_freq_est
>>
>> I converted that algorithm to java and played with it. One thing I
>> noticed though, and I'm not much of a DSP person, was that it is doing a
>> size 1024 FFT with a 1920 samples, so I assume it just ignores the extra
>> samples at the end.
>>
>> I'm wondering if a 2048 FFT would be better (more memory though, and
>> wasted at the end). Maybe downsample the 1024 reals back to 512 reals again.
>>
>> Maybe not enough to worry about??
>>
>> Thanks all, interesting stuff!
>>
>>
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>
>
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