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

[Marcus D. Leech]

Bob McGwier wrote:
> Franks comments are right on median and ROM in this case.    I stayed
> up to 4 AM and went to work at  after having breakfast and a cup of
> coffee and arrived by 9.  It is showing.
>
> The entire gist of my comments amount to nothing more than don't allow
> "aliasing" of the spectral changes as your traverse the compressed
> power spectrum to cause you to miss a peak that is ABOVE the detection
> threshold.
>
The detection algorithm works on the full-resolution FFT output (several
million bins), but for purposes of having
  an "overview" to look at, it needs to be compressed.


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