Re: [Discuss-gnuradio] FFT Spectral smoothing

[Matt Ettus]

Peter Monta wrote:
>
>>> i'd like to do spectral smoothing on an FFT in real time through
>>> GNU_RADIO.
>>>
>>> Is there a function that will allow me to do this in the GNU_RADIO
>>> modules?
>>>     
>>
>> Are you referring to smoothing FFT bins over time or over frequency?
>>
>>   
>
> I guess he means time.  This would greatly improve
> the FFT demos, since currently there is no "video
> filtering", as the spectrum analyzer folks say.
>
> A more flexible spectral estimate would allow showing
> nice clean noise floors at the expense of a little
> measurement time.

If you right-click in the spectrum window you will see an option for
averaging and peak-hold.

Matt