In theory, Fourier theorem states that a signal is composed of a number of sinusoidal signals. Analyzing the amplitude, frequency, and phase of these sinusoidal signals is referred to as the frequency spectrum analysis of the signal.
In theory, Fourier theorem states that a signal is composed of a number of sinusoidal signals. Analyzing the amplitude, frequency, and phase of these sinusoidal signals is referred to as the frequency spectrum analysis of the signal.