Title :
Discrete time and frequency Wigner-Ville distribution: Moyal´s formula and aliasing
Author :
Chassande-Mottin, Éric ; Pai, Archana
Author_Institution :
Obs. de la Cote d´´Azur, CNRS, Nice, France
fDate :
7/1/2005 12:00:00 AM
Abstract :
In this letter, we propose a new definition of the discrete time and frequency Wigner-Ville distribution. The proposed distribution not only displays a readable representation (small aliasing) but also exhibits unitarity and is easy to compute. We compare the time-frequency representation associated with this proposed definition with other existing ones.
Keywords :
Wigner distribution; discrete time systems; signal representation; time-frequency analysis; Moyal formula; Wigner-Ville distribution; discrete time signal; readable representation; time-frequency analysis; Chirp; Computer displays; Discrete Fourier transforms; Distributed computing; Kernel; Object detection; Process design; Sampling methods; Signal analysis; Time frequency analysis; Time-frequency analysis;
Journal_Title :
Signal Processing Letters, IEEE
DOI :
10.1109/LSP.2005.849493
