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Re: [Discuss-gnuradio] Random sampling

From: Dustin Maas
Subject: Re: [Discuss-gnuradio] Random sampling
Date: Thu, 19 Jun 2008 17:02:01 -0600

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).



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