View Single Post
  #13   Spotlight this post!  
Unread 22-01-2009, 11:15
manderson5192 manderson5192 is offline
Registered User
AKA: Matt Anderson
FRC #0948 (Newport Robotics Group: NRG (pronounced eNeRGy))
Team Role: Programmer
 
Join Date: Jan 2008
Rookie Year: 2007
Location: Bellevue, WA
Posts: 62
manderson5192 is on a distinguished road
Re: Accelerometer success?

Quote:
Originally Posted by Abwehr View Post
Why would you bother?

The Fourier transform is generally a more useful tool for designing filters rather than implementing them. There is no frequency domain filter that cannot be implemented in the time domain.
I think I remember reading a little about how to design time-domain filters based on a Fourier Transform, but I couldn't glean much from the website's brief description.

I'm assuming that taking a Fourier Transform of the signal could reveal the frequencies of the high-frequency signals of vibrations and electronic noise. Using this information, one could then design a time-domain filter to extract the "real" acceleration signal. If this assumption is wrong, would you so enlighten me .

Also, I would like to know what the name of such a time-domain filter would be. I'd like to do some research on it...

Thanks!
-Matt