This paper deals with a new application of the time-domain windowed (smoothed version) of the pseudo Wigner-Ville distribution (PWD), that can be easily implemented in a dedicate digital instrument to be used as a spectral analyzer for time-frequency analysis of nonstationary signals. New computational algorithms are studied and developed to attain high time-frequency resolution, accuracy, flexibility and computational efficiency, Particularly, to reduce the negative effects due to leakage during frequency changes, a new interpolation formula is derived by using the windowing theory, The suggested technique allows the users to perform optimal evaluations of the instantaneous amplitudes and frequencies of analyzed signals.
|Titolo:||Interpolated smoothed Pseudo Wigner-Ville Distribution for accurate spectrum analysis|
|Data di pubblicazione:||1996|
|Digital Object Identifier (DOI):||10.1109/19.517002|
|Appare nelle tipologie:||1.1 Articolo in rivista|