Re: Butterworth filter
- To: mathgroup at smc.vnet.net
- Subject: [mg108462] Re: Butterworth filter
- From: Paul Floyd <root at 127.0.0.1>
- Date: Fri, 19 Mar 2010 02:46:17 -0500 (EST)
- References: <hnkfa8$po0$1@smc.vnet.net> <hnl0ln$6uq$1@smc.vnet.net>
- Reply-to: root at 127.0.0.1
On Mon, 15 Mar 2010 10:03:35 +0000 (UTC), Nasser M. Abbasi <nma at 12000.org> wrote: > "Luigi B" <l.balzano at gmail.com> wrote in message > news:hnkfa8$po0$1 at smc.vnet.net... >> Dear All, >> I have a table {{x,y}} of measured data with significant noise. >> I am not into signal processing and I would like to filter this table >> with a Butterworth type of filter. >> Does anyone have a suitable routine? (That would allow changin the >> order of the filter as well, like the function 'butter' in another >> system). > > This is not much help to you now, but there used to be a Mathematica add-on > application called signals and systems which had this and more filters: > > http://documents.wolfram.com/applications/signals/FilterAnalysisandDesign.html > > Too bad this application is no longer available. Hi I'd be interested in this as well. Do you know who produced it, and whether it'd be possible to get it working again with Mathematica 7? A bientot Paul
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