AnsweredAssumed Answered

vrf How to do waveform filtering in VEE?

Question asked by VRFuser on Sep 27, 2008
I also read on the VEE software comparison page that the student version has butterworth filtering...
http://www.home.agilent.com/agilent/editorial.jspx?cc=AU&lc=eng&ckey=1197720&nid=-34448.734631.00&id=1197720
is this feature not available?
cheers
alex

Quoting Stan Bischof <rsb@soco.agilent.com>:

> fdg Fgj <kolopipo@yahoo.com> wrote:
> > How am I going to do waveform filtering like Butterworth low pass
> filter in
> > VEE without using matlab script? I am not allowed to use any matlab
> script as
> > I am only allowed to use VEE student version in doing my project.Pls
> help!
> >
>
> filters are done in VEE the same as they are done in Matlab.
> Someone looks up the math involved and implements it. As you note
> though Matlab has libraries with predefined functions that somebody
> else developed. "Filters" are not a std library for VEE.
>
> But easy to do though:
>
> digital filters are really easy with a shift register and a few
> formulas.
>
> For analog filter, a very easy way to proceed is to look up the
> butterworth polynomial that you need and put it in a formula. Take
> your signal, do an FFT, process it through the above formula, and ifft
> back to the time domain. Or if you start in freq domain you don't need
> the fft.
>
> Look in the VEE examples for existing filters.
>
> Stan
>
>
>
--------------------------------------------------------------------------
> Stan Bischof  Agilent Technologies  707-577-3994
> stan_bischof@agilent.com
>
--------------------------------------------------------------------------
>
>
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Regards
Alex

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