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The Wigner higher order spectra (WHOS) are multidimensional time–frequency distributions defined by extending the Wigner–Ville distribution (WVD) to higher order spectra domains. As a subset of WHOS, the sliced WHOS (SWHOS) are used for conveniently representing time–frequency spectra. The SWHOS provide a better localized time–frequency support compared with WVD, but still suffers from cross term...
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