Phase

Understanding the FFT phase spectrum with a simple example

Understanding the FFT phase spectrum with a simple example
  1. What is FFT phase spectrum?
  2. What is the phase spectrum?
  3. How many phases are there in FFT?

What is FFT phase spectrum?

The FFT function computes the complex DFT and the hence the results in a sequence of complex numbers of form . The amplitude spectrum is obtained. For obtaining a double-sided plot, the ordered frequency axis (result of fftshift) is computed based on the sampling frequency and the amplitude spectrum is plotted.

What is the phase spectrum?

A measure of the relative phase between two meteorological variables, segregated by wavelength. It is the phase difference for any frequency between two time series that yields the greatest correlation.

How many phases are there in FFT?

FFT consists of five major components: engagement, motivation, relational assessment, behavior change and generalization.

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