[Discuss-gnuradio] sdrsharp auto I/Q balance correction

[Marcus D. Leech]

Has anyone look at the way sdrsharp does automatic I/Q balance correction?

It seems to iterate over an FFT, looking to maximize the difference 
between bins and their images.  But that badly fails when the *incoming 
signal*
  has symmetric spectral features--the algorithm could badly screw up 
and remove spectral features that are *there in the signal*, rather than
  being images present due to poor I/Q balance.

But it's late, and I'm not sure if I'm interpreting this optimization 
strategy correctly:


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