DUAL VERSION OF MODIFIED PSEUDO-WIGNER DISTRIBUTION
In the field of quadratic TFRs, the Cohen class of TFRs has got
a very important position. It follows from the fact that a
number of quadratic TFRs can be obtained by suitable selection
of the Cohen TFR kernel. The TFRs are defined using
corresponding variables, such as as window functions in
spectrograms described in a time or frequency domain.
Distributions described by variables defined in the frequency
domain are usually known as dual versions to distributions
originally described by variables described in the time domain.
In this paper, a dual version to the modified pseudo-Wigner
distribution will be introduced. Based on the synthetic
multicomponent signal and measured EKG signal analysis, it will
be shown that the dual modified pseudo-Wigner distribution can
provide a good time-frequency resolution and good cross-terms
Keywords: Cohen class of TFRs, Wigner distribution, spectrogram, modified pseudo-Wigner distribution