RMS calculation in a spectral band

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RICCARDO CORRADI
RICCARDO CORRADI el 1 de Feb. de 2021
Comentada: Mathieu NOE el 2 de Feb. de 2021
Hi guys, i'm in the early hours with matlab. Very trivial question : how do I calculate the RMS of a signal in a spectral band defined in a range of the resonant frequency, and then for the remaining band?
Thanks
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Mathieu NOE
Mathieu NOE el 2 de Feb. de 2021
hello
see this :
relation between fft and rms - MATLAB Answers - MATLAB Central (mathworks.com)
you simply have to define the frequency range of interest and keep only the fft output that is in band

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