Best Way to Extract Frequency from Signal [closed]

1. How do you find the frequency of a signal?
2. How do you extract frequency from FFT?
3. How to extract frequency from FFT Matlab?

How do you find the frequency of a signal?

If x is an point segment of , one way to determine its frequency content is to take its discrete Fourier transform (DFT) by using the fast Fourier transform (FFT) to compute it: >> X=fft(x); This gives us an component vector , which in general will be complex valued.

How do you extract frequency from FFT?

We can obtain the magnitude of frequency from a set of complex numbers obtained after performing FFT i.e Fast Fourier Transform in Python. The frequency can be obtained by calculating the magnitude of the complex number. So simple ab(x) on each of those complex numbers should return the frequency.

How to extract frequency from FFT Matlab?

Y = fft(y,NFFT)/Datapoints; fs=Datapoints/Length; f = fs/2*linspace(0,1,NFFT/2+1);