Wednesday, May 2, 2012

[Discuss-gnuradio] complex bandpass vs real low-pass

I have been in the habit of using complex-bandpass filters even when I'm
just looking for a symmetric response. I did some measurements
today and found a 40-45% performance advantage to using a low-pass
real filter when a symmetric response is desired. What's the "crux"
of the performance difference?

Needless to say, I ran around and changed all my recent "stuff" to use
low-pass filters :-)

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



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