Re: [Discuss-gnuradio] Random sampling

[Dustin Maas]

Juha, Brian,

I am working on a research project that involves wide-band spectral  
estimation with the USRP.  In this case, the bottleneck is USB 2.0,  
which is why I need to implement my sample selection algorithm on the  
FPGA.

Thanks for your interest.


On Jun 19, 2008, at 3:11 PM, Juha Vierinen wrote:

> > > I am new to gnuradio and the USRP and I am trying to find a way to  
> > > send
> > > pseudorandomly selected samples from the ADC down the USB pipe to  
> > > gnuradio
> > > for processing.  I have an algorithm for selecting the samples,  
> > > but I am not
> > > sure as to which parts of the Verilog source files I need to  
> > > change in order
> > > to reconfigure the FPGA for my needs.
>
> This sounds like a good idea! I would also be interested in this kind
> of functionality.
>
> > Welcome aboard - I'm confused.  You just want random samples?  Is
> > there anything stopping you from performing said algorithm at the  
> > host
> > on a randomly decimated sample stream?
> >
> > May I inquire on your application?
>
> I guess one application would be wide-band alias-free spectrum
> estimation (at least that is what I would do with such a sampler).
>
> http://matwbn.icm.edu.pl/ksiazki/amc/amc15/amc1544.pdf
>
> juha