On Mon, Nov 18, 2013 at 8:41 AM, Frederik Wing <freddy.15-...@freenet.de> wrote: > As I said, I cannot design a filter with a sampling frequency below 1e6. > The Python script I posted (where f_s = 1e3) does NOT work! But if I > change f_s to 1e6 it works and gives me the gigantic filter. > > Frederik
I think I see the problem. Testing now. Not sure why this works on Intel machines without throwing, actually. Tom > Am 18.11.2013 14:35, schrieb Tom Rondeau: >> On Mon, Nov 18, 2013 at 8:31 AM, Martin Braun (CEL) >> <martin.br...@kit.edu> wrote: >>> On Mon, Nov 18, 2013 at 02:19:55PM +0100, Frederik Wing wrote: >>>> Hi Tom, >>>> >>>> what you are writing is completely right. Simply increasing the sampling >>>> frequency will result in a more complex filter. >>>> >>>> Nevertheless the firdes.low_pass function does NOT want to calculate the >>>> 101-tap-filter. But it DOES calculate the 100001-tap-filter. Really >>>> strange. So this might not be a memory problem. >>>> >>>> The "magic border" I described is at 1MHz. Not at 1GHz as I wrote >>>> accidentally. >>> Can you post the exact call too firdes.low_pass(), thanks. >>> >>> MB >> >> Yes, Frederik, I'm afraid you're not being clear. You say you can't >> build a 101 tap filter? That's different than what you were saying >> before. Are you saying that you can't go below 1e6 sps or above it? >> >> Tom >> >> _______________________________________________ >> Discuss-gnuradio mailing list >> Discuss-gnuradio@gnu.org >> https://lists.gnu.org/mailman/listinfo/discuss-gnuradio >> >> > > > _______________________________________________ > Discuss-gnuradio mailing list > Discuss-gnuradio@gnu.org > https://lists.gnu.org/mailman/listinfo/discuss-gnuradio _______________________________________________ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
