Raymond Toy <[email protected]> writes:

>>>>>> "Tim" == Tim Wescott <[email protected]> writes:
>
> Tim> I'm trying to think of examples where using an anti-alias filter is a
> Tim> bad idea, or must at least be approached with extreme caution. I
> Tim> already know about control systems and video applications, and I
> Tim> believe that this is a big issue with EKG machines.
>
> Isn't there always some kind of anti-alias filter, whether you want it
> or not?

Yes, but you can oversample and therefore greatly reduce the "nastiness"
of the antialias filtering. Especially for such low bandwidth signals.
--
% Randy Yates % "...the answer lies within your soul
%% Fuquay-Varina, NC % 'cause no one knows which side
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