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> Date: Fri, 30 Jul 2010 13:55:10 -0400
> From: mle...@ripnet.com
> To: discuss-gnuradio@gnu.org
> Subject: Re: [Discuss-gnuradio] gnuradio land speed record?
>
> On 07/30/2010 01:01 PM, Matt Ettus wrote:
> >
> > With RAID arrays or SSDs, it isn't that hard anymore to sustain 100
> > MB/s recording to disk. With 4 and 6 core systems and the i7
> > architecture you can get more than 5X the performance of your laptop.
> >
> > There are a lot of applications using the full 25 MHz of RF bandwidth.
> > You just need to pay a lot of attention to efficiency of your program
> > and algorithms.
> >
> > Matt
> >
> >
> For reference, an early version of my IRA radio astronomy receiver was
> able to do single-channel
> at 16MHz bandwidth, using a Core 2 Extreme 9770 and 8GB of memory and
> a USRP1.
>
> The IRA code does a number of things
>
> o compute total power over the entire bandwidth
> o compute an FFT with 1Hz resolution (that's a 16 million point FFT)
> o do a SETI analysis of the resulting FFT
> o do a transient signal analysis of the total power data
> o run a narrowband interference filter based on an FFT filter
> o run a GUI with lots of bells 'n whistles
>
>
>
>
> --
> Principal Investigator
> Shirleys Bay Radio Astronomy Consortium
> http://www.sbrac.org
>
>
>
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Now was the FFT continuous, i.e. you got one output bin for every input sample
or you did snapshots? Thanks
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