[Elecraft] Does the K3S DSP support LMS noise reduction ?

[Sverre Holm (LA3ZA)]

The K3 and thus presumably the K3S implements one particular form of the
Least Mean Squares algorithm called the Leaky LMS, see Lyle's response some
years ago:
http://elecraft.365791.n2.nabble.com/K3-NR-td1557606.html#a1557836

That's an adaptive version of a Wiener filter that doesn't get so easily
'stuck' in a non-optimal solution if signal statistics should change
drastically. Instead the non-optimal solution 'leaks' out of the filter.

The Wiener filter by itself is a fixed signal-to-noise optimizing filter,
and thus is fundamentally different from low pass,  high pass etc in that
the filter's coefficients depend on the input signal.




-----
Sverre, LA3ZA

K2 #2198, K3 #3391,
LA3ZA Blog: http://la3za.blogspot.com,
LA3ZA Unofficial Guide to K2 modifications: http://la3za.blogspot.com/p/la3za-unofficial-guide-to-elecraft-k2.html
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