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

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Maria Amr
Maria Amr 2020-12-9
编辑： Théophane Dimier 2020-12-9
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);

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Théophane Dimier
Théophane Dimier 2020-12-9
编辑：Théophane Dimier 2020-12-9
Try sqrt(mean(a.^2)), it should work in a simpler way.

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Théophane Dimier
Théophane Dimier 2020-12-9
Hi!
Have you tried:
y=mean(abs(A));
?
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Maria Amr
Maria Amr 2020-12-9
Théophane Dimier
Exactly. Thank you!
it seems, this code "sqrt(mean(a.^2))" gives a reasonable answer.
Théophane Dimier
Théophane Dimier 2020-12-9
I have copied that solution to a formal answer so you can close the question

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