Title :
Complex-lag polynomial Wigner-Ville distribution
Author :
Morelande, Mark ; Senadji, Bouchra ; Boashash, Boualem
Author_Institution :
Queensland Univ. of Technol., Australia
Abstract :
This paper introduces a fourth order polynomial Wigner-Ville distribution (PWVD) which uses complex time lags to achieve optimal energy concentration for signals with non-linear FM laws. It is shown that the new complex-time fourth order PWVD provides an unbiased estimate of the instantaneous frequency of signals with polynomial phases up to order four.
Keywords :
Wigner distribution; complex-lag polynomial Wigner-Ville distribution; fourth order Wigner-Ville distribution; instantaneous frequency estimation; nonlinear FM laws; optimal energy concentration; polynomial phases; signal frequency estimation; unbiased estimate; Frequency estimation; Kernel; Parameter estimation; Phase estimation; Polynomials; Speech; State estimation; Telecommunication computing;
Conference_Titel :
TENCON '97. IEEE Region 10 Annual Conference. Speech and Image Technologies for Computing and Telecommunications., Proceedings of IEEE
Conference_Location :
Brisbane, Qld., Australia
Print_ISBN :
0-7803-4365-4
DOI :
10.1109/TENCON.1997.647254
