You can make three or more narrow band high Q band
pass filters and sum them all together using
various gains of your own free choice.

----- Original Message ----- 
From: 
To: 
Sent: Saturday, January 20, 2007 7:51 AM
Subject: Re: Pendulum Q


> Correction: 0.05Hz, not 20Hz. With an information bandwidth of around  
> 0.0025Hz.
> 
> Bob
>
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