DocumentCode :
3635434
Title :
An approach to the polynomial Wigner distributions
Author :
S. Stankovic;L. Stankovic
Author_Institution :
Elekrotech. Fakultet, Montenegro Univ., Yugoslavia
fYear :
1996
Firstpage :
153
Lastpage :
156
Abstract :
The distribution concentration along the instantaneous frequency is one of the interesting research topics in time frequency analysis. The oldest and simplest transform for time-frequency signal representation is the short-time Fourier transform (STFT). However, it may achieve high concentration at the instantaneous frequency only for signals whose frequency is constant. The quality of the time-frequency signal representation may be improved using the Wigner distribution. An analysis of the polynomial Wigner distributions, with respect to the concentration in the time-frequency plane is presented. A distribution with "complex-time" argument is defined. The concentration of the polynomial and the "complex-time" distributions is illustrated by examples.
Keywords :
"Polynomials","Frequency","Interpolation","Sampling methods","Fourier transforms","Taylor series","Equations"
Publisher :
ieee
Conference_Titel :
Time-Frequency and Time-Scale Analysis, 1996., Proceedings of the IEEE-SP International Symposium on
Print_ISBN :
0-7803-3512-0
Type :
conf
DOI :
10.1109/TFSA.1996.546709
Filename :
546709
Link To Document :
بازگشت