Amplitude spectrum vs power spectrum

1. What is the difference between spectrum and power spectrum?
2. What is an amplitude spectrum?
3. Is power spectrum and frequency spectrum the same?
4. What is a power spectrum?

What is the difference between spectrum and power spectrum?

These two terms are used interchangeably throughout the signal processing and mathematics communities; at a conceptual level, there is no difference between these two terms. The two terms both describe how the intensity of a time-varying signal is distributed in the frequency domain.

What is an 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.

Is power spectrum and frequency spectrum the same?

It can be looked upon as a frequency-domain plot of power per unit Hz vs. frequency. Therefore, while the power spectrum calculates the area under the signal plot using the discrete Fourier Transform, the power spectrum density assigns units of power to each unit of frequency and thus, enhances periodicities.

What is a power spectrum?

Power spectrum analysis is a technique commonly used by PID tuning software and applies a fast Fourier transform (FFT) to the variation of a particular signal to compute its frequency spectrum. The result is presented as a plot of signal power against frequency and is referred to as its power spectrum.