MATLAB Answers

How to get the sum of the Mean absolute amplitudes of a signal ?

28 views (last 30 days)
I truly appreciate if someone answer me. I need to measure RMS of a seismic signal and I done it with the simple rms code, but my professor asked me to measure RMS of mean absolute amplitude sum(abs(a))/N). Thank you!
signal = ...;
y = rms(signal);

  0 Comments

Sign in to comment.

Accepted Answer

Théophane Dimier
Théophane Dimier on 9 Dec 2020
Edited: Théophane Dimier on 9 Dec 2020
Try sqrt(mean(a.^2)), it should work in a simpler way.

  0 Comments

Sign in to comment.

More Answers (1)

Théophane Dimier
Théophane Dimier on 9 Dec 2020
Hi!
Have you tried:
y=mean(abs(A));
?

  6 Comments

Show 3 older comments
Théophane Dimier
Théophane Dimier on 9 Dec 2020
maybe something like sqrt(mean(a.^2)) ?
But are you doing the calculation in time domain or in frequency domain?
Maria Amr
Maria Amr on 9 Dec 2020
Exactly. Thank you!
it seems, this code "sqrt(mean(a.^2))" gives a reasonable answer.
Théophane Dimier
Théophane Dimier on 9 Dec 2020
I have copied that solution to a formal answer so you can close the question

Sign in to comment.

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!