in original -- Latin -- it means; take every tenth
73
KJ6UHN
Alex
On 2/25/2020 7:15 AM, Bob kb8tq via time-nuts wrote:
Hi
In the common vernacular “decimation” does indeed mean “just throw the rest
away”.
You can find papers where that *is* what’s being done with samples and that
term is
used. Downsample also means “just throw them away”……
Bob
On Feb 25, 2020, at 9:55 AM, Dana Whitlow via time-nuts
<time-nuts@lists.febo.com> wrote:
I'm confused:
I seem to see multiple (at least double) meanings for the term
'decimation'.
One meaning is simply: "take every nth sample and discard
the others without regard to possible aliasing".
The other meaning is: "take every nth sample, but first prefilter
as appropriate to (sensibly) eliminate aliasing".
Which is it? And if the answer is "both", then shouldn't we all
be very careful to explicitly specify which meaning applies to
the situation at hand whenever we use the term "decimation"?
Thanks,
Dana K8YUM
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