What is amplitude spectrum?

amplitude spectrum specifies the amplitude of signal components as a function of component . frequency . The phase spectrum specifies the phase of signal components as a function of. component frequency. This phase is measured with respect to a cosine reference.

Frequency Domain The amplitude spectrum simply gives amplitude at each frequency . The phase spectrum simply gives the phase at each frequency (Figure 2.20). Figure 2.20. (a) Amplitude spectra.

Frequency spectrum of a signal is the range of frequencies contained by a signal .