Should i normalize FFT signal with z-score?

1. Is z-score is used for normalization?
2. How do you normalize data for FFT?
3. What does z-score Normalisation do?

Is z-score is used for normalization?

It will return a normalized value (z-score) based on the mean and standard deviation. A z-score, or standard score, is used for standardizing scores on the same scale by dividing a score's deviation by the standard deviation in a data set. The result is a standard score.

How do you normalize data for FFT?

Normalise the fft by dividing it by the length of the original signal in the time domain. Zero values within the signal are considered to be part of the signal, so 'non-zero samples' is inappropriate. The length to use to normalise the signal is the length before adding zero-padding.

What does z-score Normalisation do?

Z-Score Normalization

If a value is exactly equal to the mean of all the values of the feature, it will be normalized to 0. If it is below the mean, it will be a negative number, and if it is above the mean it will be a positive number.