Apply filter to measured data
- To: mathgroup at smc.vnet.net
- Subject: [mg75323] Apply filter to measured data
- From: Oliver Friedrich <oliver.friedrich at tzm.de>
- Date: Wed, 25 Apr 2007 05:35:37 -0400 (EDT)
Hallo,
I have lists of measured data
{{t0,f[t0]},{t1,f[t1]},...,{tn,f[tn]}}
where the samplepoints are not (!) distributed equidistant.
I want to apply an analog lowpass filter (1. order RC lowpass) to this list
to get a list of the filtered signal. I have the Signals&Systems package,
but the filters need to be applied to a function. So I turned these lists
into InterpolationFunction objects, but they don't work together with the
Signals&Systems toolbox. I tried to convert these InterpolationFunctions
objects into the PiecewiseContinuousData objects, but this didn't work
either with the filters.
Is there a way to use the Signals&Systems toolbox on such lists?
Thank you
Oliver Friedrich