More help on the Signals&Systems package
- To: mathgroup at smc.vnet.net
- Subject: [mg75301] More help on the Signals&Systems package
- From: Oliver Friedrich <oliver.friedrich at tzm.de>
- Date: Tue, 24 Apr 2007 03:28:06 -0400 (EDT)
Hallo,
I fear that I'll need much more help with this package than I thought.
One of my probems is:
I have data from a measurement in the form of
data=
{
{t1,f(t1)},
...
{tn,f[tn}
}
The data is roughly 25.000 points. Now I've converted this into a function
with Interpolation[data] to get an interpolation object. Now I want to
apply a lowpass filter to this signal. I have a filter object like it is
created within the Signals&Systems package.
Finally I want to visualize the plot so I type
SignalPlot[EvaluateOperators[filter[rawdata]],{t,0,10^6}], but this doesn't
work. The signal plot returns a "...is not a real number at T=...)
Can I use Interpolation function objects within this package?
If not how can I filter my data? Should I convolute in time domain?
Thanks for your help
Oliver Friedrich