Re: [Discuss-gnuradio] Correct method for "compressing" a power spectrum

[Marcus D. Leech]

Brian Padalino wrote:
>
>
> As per the original question, I am wondering what the reason for
> taking the time to do a 4M point FFT and then compressing the
> frequency information?  I would think you're just throwing away
> frequency resolution at that point and, inherently, wasting CPU
> cycles.
>
> So - back to Marcus - what is the overall goal of "compressing" your
> FFT data?  I have a feeling it's for visualization of your data as
> opposed to actually performing math or computational analysis, right?
>   
The original {1,2,4,8,16}M-bin data are used for SETI analysis, while
the "compressed" version
  is used for a quick visual, "conventional" spectral display.


-- 
Marcus Leech
Principal Investigator, Shirleys Bay Radio Astronomy Consortium
http://www.sbrac.org