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Reassigned operation is a technique to improve the representation quality of time-varying signals in the time-frequency domain. This paper presents the arbitrary higher-order reassigned local polynomial periodograms (LPPs) and their properties. The modified Wigner-Ville distribution is defined and its properties are discussed as a basis to derive the properties of the higher-order reassigned LPPs...
In this paper, the reassignment method is extended to the robust local polynomial periodogram to process the nonstationary signals corrupted by impulse noise. Performance comparisons between robust spectrogram, the reassigned robust spectrogram, the robust local polynomial periodogram and the reassigned robust local polynomial periodogram (RrLPP) are presented. During computation of the local polynomial...
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