What is another word for power spectrum?
Pronunciation: [pˈa͡ʊə spˈɛktɹəm] (IPA) 
A power spectrum refers to the distribution of the power of a signal or data over frequency. Synonyms for power spectrum include spectral analysis, frequency spectrum analysis, power spectral density, and energy spectral density. Spectral analysis is the process of decomposing a signal into its component frequencies to reveal patterns or information hidden in the data. Frequency spectrum analysis is a technique used to analyze the frequency content of a signal or system. Power spectral density is a measure of the distribution of power of a signal or data over frequency, and energy spectral density is the total energy of the signal or data over frequency.
