Mean Filter of a Time History

The mean filter is a simple sliding-window filter that replaces the center value in the window with the average (mean) of all the values in the window.

The mean filter is intended as a lowpass filter which smooths the data.

It may also be used as a highpass filter by subtracting the mean filtered signal from the raw data.

Here is a Matlab script:  mean_filter.m

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See also:

Bessel Lowpass Filter

Butterworth Filter

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– Tom Irvine

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