The magnitude and phase spectra are calculated from the complex output Xf using abs(Xf) and angle(Xf), respectively (see Example 3.3). Again, the angle routine gives phase in radians so as to convert to the more commonly used degrees scale by 360/(2π).
Read moreWhat is the difference between the magnitude and the phase spectrum of the Fourier transform?
The magnitude is the square root of the sum of the squares of the real and imaginary parts and the phase is the arctan(Im/Re) , so you can plot these individually and see how the amplitude varies over frequency and also any phase shifts that may occur at different frequencies.2 Haz 2020
Read moreWhat is the magnitude of a wave?
Its magnitude is either the wavenumber or angular wavenumber of the wave (inversely proportional to the wavelength), and its direction is ordinarily the direction of wave propagation (but not always; see below).
Read moreWhat is the phase of a Fourier transform?
The phase of a signal generally refers to the timing of the signal (or how two sinusoids line up) as you posted in your question. But you are asking about the phase of a signal in the frequency domain (i.e., after an FFT operation). The FFT function computes an N-point complex DFT.
Read moreWhat does the phase spectrum show?
By the common words, the phase spectrum shows the phase shifts between signals with different frequencies . The very simple example is the chromatic dispersion. Assume the signal has definite phase shifts at the input in some volume with dispersive medium.
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