Main frequency Fast Fourier Transform (FFT)

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Michalis Gelastos
Michalis Gelastos le 24 Fév 2021
Commenté : Michalis Gelastos le 27 Fév 2021
I have an array X that contains a column with numbers from a time signal of 40hz sample. I want to find the main frequency component (MFC) of that array. I tried using ftt(X) function in matlab which returns a new complex array Y. What are the next step to find the MFC and the amplitude of MFC?

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Shadaab Siddiqie
Shadaab Siddiqie le 27 Fév 2021
Modifié(e) : Shadaab Siddiqie le 27 Fév 2021
From my understanding you want to find frequency of signal in FFT. Here (link1 and link2) is a similar question which might help you.
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Michalis Gelastos
Michalis Gelastos le 27 Fév 2021
To be honest, i'm not sure what i'm searching exactly. I have data from the accelerometer on the phone from x,y,z axis and i need to find the main frequency component. (It's a task from uni, that i have to do, so that's why i don't know what i'm looking for)

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