How to apply a Low pass filter on a set of data from Excel

Hello, I'm wondering how can you apply a low pass filter at a sample rate at 10 Hz on these data? Assume Max Cur = X and Max Vol = Y

Thank you for your time

Answer 1

[Star Strider]

First, import the data using readmatrix or readtable, and determine the sampling frequency (it must have regular sampling intervals).

Then if you have the Signal Processing Toolbox and R2018a or later, use the lowpass function.

[Hui Puong]

Currently, I dont have the signal processing toolbox. Is there like a way around to do it?

Thank you

[Star Strider]

You would have to write your own code to create the filter coefficients. You could then use the filter function, however that is not ideal because it does not correct for phase distortion/delay in the filtered signal.