Transform

Wigner Ville Distribution vs FFT

Wigner Ville Distribution vs FFT
  1. What is Wigner Ville transform?
  2. How wavelet transform offer better time frequency analysis as compared to Stft and gabor transform?

What is Wigner Ville transform?

Inonu University. The notion behind the Wigner- Ville is that the signal is considerd to be the filter for the itself. Wigne -Ville Transform is the one dimensional (in time axis) Forier transform of the 2D auto-convulution function of signal.

How wavelet transform offer better time frequency analysis as compared to Stft and gabor transform?

The result of the wavelet transform differs from the STFT in that its time-frequency resolution is not fixed and depends on the frequency (multi-scale property, see Fig. 5). In general, the wavelet transform represents lower frequency components with finer frequency resolution and coarser time resolution.

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