Am 12.12.19 um 07:19 schrieb Bruce Griffiths:
Cross Correlation methods are commonly used with analog mixers.
Most of the high end commercial offerings use it (Holzworth, Anapico, Rhohde &
Schwarz, etc.)
"High End" is a contradiction to "Commonly Used" somehow.
In the published timenuts world, aka NIST or the usual suspects, there
is only
deafening silence. I have seen the marketing blurbs and have even
limited access
to the really good stuff.
Yes, there is the all-digital solution of Andrew Holme based on a
Spartan-6 demo board, some ADCs and Verilog but that's it. (And I like it!)
In the published analog area, there is pure joy when a 2N2222 mixer pushes
the state of the art a few dB at 5 MHz.
While I'm at it, is there a _tested_ open C/C++/Fortran/whatever
implementation of
fft/xcorr that I could cut & paste into a BeagleBone black?
Gerhard, DK4XP
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