Title :
On computing the discrete Wigner-Ville distribution
Author :
Chan, S.C. ; Ho, K.L.
Author_Institution :
Dept. of Electr. & Electron Eng., Hong Kong Univ., Hong Kong
fDate :
5/1/1990 12:00:00 AM
Abstract :
The Wigner-Ville distribution is an important tool in nonstationary signal analysis. Many algorithms to compute the discrete Wigner-Ville distribution (DWVD) have been proposed. New efficient methods for computing the discrete Wigner-Ville distribution are presented. Observing that the DWVD is real and periodic, it is possible to express it as the DFT of a complex conjugate sequence of reduced length. Comparison to other algorithms are also made.
Keywords :
Fourier transforms; information theory; signal processing; DFT; complex conjugate sequence; discrete Fourier transform; discrete Wigner-Ville distribution; nonstationary signal analysis; real periodic properties; reduced length; signal processing;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19900417
