On Wed, 11 May 2005 23:49, James Cooley wrote: > In the other window, do: > #> gzip -dcf data.gz > testfifo > > > > Seems to work barely on my laptop, which is a 1.6 GHz pentium M > machine.... HOWEVER, to aid things along even more, I did the captures > without using X-windows (you don't need it if your not using any guis). > You can switch consoles in linux with ctl-alt-Fx, where F7 is where your > x-windows is running. I switched to a console, killed X, used one > console for the usrp, the other for the piping and zipping. > > How well did it work? I did a sweep of the entire front-end's range, > about 40 minutes of sampling incrementing by 400kHz about every second > from 50 Mhz to 860 MHz... this gave me a zipped file roughly 600MB.
It would be interesting to see how well say, FLAC or Shorten work at compressing this stuff. When I did some tests with our radar systems Shorten worked very well, but I suspect FLAC would have worked better if it could have been configured for the right number of channels (ie 300). -- Daniel O'Connor software and network engineer for Genesis Software - http://www.gsoft.com.au "The nice thing about standards is that there are so many of them to choose from." -- Andrew Tanenbaum GPG Fingerprint - 5596 B766 97C0 0E94 4347 295E E593 DC20 7B3F CE8C
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