Re: [Discuss-gnuradio] Cross-correlating Two FFT signals

On 07/22/2014 01:32 PM, Ward, Marcus D. wrote:
> Thanks Martin, I'll try that and also I don't happen to see any Inverse FFT blocks on Gnu-radio, is there a way I can do the IFFT on GNU-radio since there is no block for it?
The FFT block has a parameter that says "Forward" or "Reverse" (or
Inverse).


> -----Original Message-----
> From: discuss-gnuradio-bounces+marcus.ward=jhuapl.edu@gnu.org [mailto:discuss-gnuradio-bounces+marcus.ward=jhuapl.edu@gnu.org] On Behalf Of Martin Braun
> Sent: Tuesday, July 22, 2014 12:20 PM
> To: discuss-gnuradio@gnu.org
> Subject: Re: [Discuss-gnuradio] Cross-correlating Two FFT signals
>
> On 07/22/2014 04:02 PM, Ward, Marcus D. wrote:
>> Hello,
>>
>> I'm trying to find a way that I could cross-correlate two FFT signals
>> that I have coming in from two UDP networks, anyone know of a block I
>> can do that with?
> There's no dedicated xcorr-block, but you can do a fast correlation using FFTs and point-wise multiplication.
>
> M
>> Thanks in advance, Marcus
>>
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--
Marcus Leech
Principal Investigator
Shirleys Bay Radio Astronomy Consortium
http://www.sbrac.org


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