Re: [Discuss-gnuradio] Streaming IQ File Compression

Chris, Excellent, then I will start benchmarking tomorrow :) Thanks! On Sat, Jul 16, 2016 at 9:35 PM, Chris Kuethe wrote: > Flac doesn't really need to know what the actual sample rate is; you > could tell it 500e3 and you should get the same data out after >

Re: [Discuss-gnuradio] Installation of GNU Radio/UHD on Windows

1- The gqrx label button is a known problem. 2- To examine the path settings, open run_gr.bat in a text editor and it should be pretty apparent what it's doing. Take a look at the paths it is settings and see if that matches with what you would expect with where you installed it. And you can

Re: [Discuss-gnuradio] gnuradio in windows

The Qt GUI problem can be fixed by downloading a version of the qwt dll from the binaries site, but Wx will work in the meantime. By the end of the month a new version of the binaries should be posted that will fix that issue. Is the gnuradio-grc.png causing a problem other than the windows icon

Re: [Discuss-gnuradio] Streaming IQ File Compression

Flac doesn't really need to know what the actual sample rate is; you could tell it 500e3 and you should get the same data out after compressing and decompressing it. On Sat, Jul 16, 2016 at 11:20 AM, Dave NotTelling wrote: > Marcus & Dan, > > Thank you very, very much

Re: [Discuss-gnuradio] Streaming IQ File Compression

Hello Juha, idea: if Dave's distribution of amplitudes was a little more benign than the Radar near/far problem, and he would favor full resolution when the signal is weak, but could live with a bit of degradation due to quantization when the signal is strong, what about storing a logarithm of

Re: [Discuss-gnuradio] Streaming IQ File Compression

Can you reduce the number of bits that you are using? With radar signals, the receiver noise most of the time excites only about 8 bits out of 16. Ground clutter or meteor echoes excite nearly all of the bits occasionally, so I can't just truncate to 8 bits. In this case, bzip2 actually does a

Re: [Discuss-gnuradio] Streaming IQ File Compression

Marcus & Dan, Thank you very, very much for the detailed information! Dan: That's exactly what I thought when going into this at first. But, I decided to give gzip a shot just to see how well it did. Turns out that (at least for bursty environments) it almost halves the size of the

Re: [Discuss-gnuradio] Good CDMA codes

184,756 is exactly what I got. From: Marcus Müller Sent: ‎Saturday‎, ‎July‎ ‎16‎, ‎2016 ‎7‎:‎13‎ ‎AM To: discuss-gnuradio@gnu.org Ah, so, by the way, 10bit-out-of-20bit-set generator attached. On 15.07.2016 04:54, Henry Barton wrote: I’m designing a CDMA system with a spreading

Re: [Discuss-gnuradio] Whats going on ???

Beste Pascal, je schrijf de verkeerde mailing list! This is the GNU Radio discuss list, English, and kind of not the one for your hackspace. Anyway, I hope everything will turn out for the better, Marcus On 16.07.2016 14:53, Pascal wrote: > Vandaag was ik een paar uurtjes in de space. > >

[Discuss-gnuradio] oops

Oops Wrong email address verry verry dumb of me sry for that PAscal ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio

[Discuss-gnuradio] Whats going on ???

Vandaag was ik een paar uurtjes in de space. Erg teleurstellend dat ik er wederom alleen zat maar we kunnen (en willen) nu eenmaal niemand verplichten om te komen. Dit ondanks dat voor de meeste deelnemers de Zaterdag wel de meest geeigende dag is om te komen (is dat eigenlijk wel zo ?) Wat

Re: [Discuss-gnuradio] Good CDMA codes

Ah, so, by the way, 10bit-out-of-20bit-set generator attached. On 15.07.2016 04:54, Henry Barton wrote: > I’m designing a CDMA system with a spreading factor of 20. I recently > wrote an app to go through all the binary permutations up to 2^20 and > report which ones have an equal number of 0’s

Re: [Discuss-gnuradio] Streaming IQ File Compression

Ah! On 16.07.2016 11:04, Marcus Müller wrote: > and maybe, but this is really speculation, you can just modify the > error calculation to just ignore the 4 lower bits of the actual sample > data, and safe another few percents of data volume. Yeah, there's a

Re: [Discuss-gnuradio] Streaming IQ File Compression

> If there's a lot of white noise, you won't get much compression Alas, Entropy is killing compression. So yeah, if you anyhow can, try to reduce bandwidth by filtering and decimating. You can also just "round" or even "throw away" bits – at 100MS/s (presumably coming from a X310 running at a

Re: [Discuss-gnuradio] Good CDMA codes

He means "twenty faculty", ie. $20!=\prod\limits_{i=1}^{20} i=1\cdot 2\cdot3\cdot4\cdot\dots\cdot19\cdot20$. n! happens to be the number of permutations of n distinct objects, and this is my guess where he got that from; however, (0011) doesn't contain 20 distinct objects, e.g.