Oscillation about one point

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Indu S
Indu S 2021-6-5
评论： Indu S 2021-6-5
I have an array of values I get from a sensor and the values undergo damped oscillated after the first few seconds. I want to find the point across which it oscillates. Can someone help me out?

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回答（1 个）

Rik
Rik 2021-6-5
It might be enough to use mean on the second half of your vector. Sometimes a simple solution will already do the trick.
The alternative would be to fit a function to your data, or to do a Fourier transform and keep only the low frequencies.
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Walter Roberson
Walter Roberson 2021-6-5
A sample plot would help, especially with a note about significant differences that might be detected before the damped oscillations.
Indu S
Indu S 2021-6-5
The oscillations you can see from about 3 secons till 12 seconds is what I am talking about. Since it is not about 0, I want to find the new point.

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