Abstract

Abstract The Wigner–Ville distribution is a time–frequency distribution developed for the analysis of time‐varying spectra. The interpretation of classic Fourier analysis may become problematic when the frequency content changes over time. The power spectrum cannot indicate when specific spectral components occur or how they change in intensity and frequency. Thus, when the signal is characterized by a time‐varying spectrum, it is preferable to decompose the signal power by a joint function of time and frequency. The Wigner–Ville distribution quantifies the fraction of the power in a certain frequency band during a certain time range.

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