On 29 Jun, 20:57, "Michael Plante" <michael.pla...@gmail.com> wrote:

> >Apart from that, don't dismiss the bandpass filter quite yet.
> >True, there might be some delays, but if you are a bit
> >cautious when designing the filter, you would be able to
> >correct for them.
>
> Hrm. *Okay, would you say the BPF is the best option mentioned so far?

Let's say the BPF or LP is the 'least bad' option so far.
There are a few too many loose ends to suggest other options.
As always, start with the simple, easy-to-use stuff first.
Only when that is insufficient, switch to more heavy-duty
stuff.

PLLs and Kalmans and what have you, might be what is needed
in the end, but it would just be too stupid starting up
those sorts of machineries whithout having at least tried
the simple filters first.

Rune