Re: [Discuss-gnuradio] USRP network based spectrum analyzer

On 28/09/2011 4:50 PM, Phelps Williams wrote:
> I have a usrp and computer in a remote location without much network
> bandwidth available to the system and I'm using it as a spectrum
> analyzer. I'd like to run the fft on the remote system and then send
> the results to a connected client for display. This would allow me to
> get greater fidelity than xwindows forwarding or the ascii dft example
> while also using less bandwidth. I would imagine the client side
> would potentially reuse some of the existing wx or qt interfaces for
> display and control.
>
> This seems like a pretty useful / simple use of this hardware. Does
> anybody know of any implementations floating around that does this?
> I'd prefer not to reinvent the wheel.
>
> -Phelps
>
You could use a GRC-based flow-graph that computes the FFT, and outputs
the results to a FIFO, and have a small C program that simply puts
"snapshots" in an appropriate place. Once it's in an "appropriate
place" (and perhaps in a form that you like), you could use a web server
to observe the results. Roughly 1e6 ways of skinning this particular
cat.

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