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Butterworth Filter Plug-in For MS Excel
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Posted by: BRichard1

11/28/2005, 23:24:56

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I have raw accelerometer data that I have imported to Excel and now need to run a 4-pass Butterworth filter on the data. Anyone know if there is such an animal available as a plug-in for Excel? Any help willbe appreciated.







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Re: Butterworth Filter Plug-in For MS Excel
: Butterworth Filter Plug-in For MS Excel -- BRichard1 Post Reply Top of thread Forum
Posted by: davamb

12/03/2005, 18:46:07

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4th order (I presume that's what you meam) Butterworth low-pass function has polynomial factors: Pn(s) = (s^2 + 0.765s + 1)(s^2 + 1.618s +1) Shouldn't be too hard for you to work out the transfer function equation as a function of (f) and run your data through it.







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