A moving window average is a poor digital filter in the frequency domain [0]. You can get better results with more control on which frequencies are removed by

A moving window average is a poor digital filter in the frequency domain [0]. You can get better results with more control on which frequencies are removed by implementing a FIR or IIR (especially Butterworth) digital filter. [0] https://ptolemy.eecs.berkeley.edu/eecs20/week12/freqResponseRA.html https://ptolemy.eecs.berkeley.edu/eecs20/week12/freqResponse...