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noise removal on a step respons of a battery: the step is also important
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Hello all,
currently I am doing some battery tests to determine the numerical values of the components used in my battery model. What I do is: I discharge my battery with 10 amps and after a vertain amount of time, I set the discharge current to 0 so I can monitor the relaxation behaviour of the battery. Now it seems like the measurements suffer from some noise. Because the steps in voltage (see picture) are completely normal, and important to measure, I'd only need a filter which can filter the noise and not the step away. Anybody knows how to make that happen? Thanks in advance!
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4 Comments
Accepted Answer
Image Analyst
on 16 Aug 2014
The median filter, medfilt1(), is the usual recommendation for a first try at it.
2 Comments
Image Analyst
on 17 Aug 2014
Usually you do an odd number of samples in the window so that you don't have a half sample shift along the x axis between the input and output.
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