Hello,I’ve only a TV tuner E4000 for have fun with gnuradio…unlucky its
sample rate is less than 3MSPS…I want to have fun with application more
compute intensive, in order to see better bottlenecks and
latencies…Could you tell me where I can find(if they exist) files with
sample of 802.11 transmission, or other heavy application?
Thank you,marco
Hello Marco,
rest assured that with 3MS/s you can bring a fully fledged workstation
to a constant boil, if you just do the wrong things on it. For example:
you might want to receive ham radio. Ham radio often needs to squeeze
the best SNR out of your signal; that usually requires great filters.
Now, the better (read: steeper) your FIR filter is, the longer it gets
[1], so try doing a 200Hz transition width low pass on a 2MHz nyquist
band (hint: it get’s ugly. Without multirate filters, that would easily
be 133GFlop/s [ripple=1e-3=delta_stopband]).
Now, we all love gr-ieee802-11, so why not point [2] you at it?
Greetings,
Marcus
[1] N_filt ~= 2/3 log10(1/(10ripple_passbanddelta_stopband)) *
f_nyquist/f_transition