Title :
Polynomial Wigner-Ville distribution for the analysis of polynomial FM signals: a performance study
Author :
Barkat, B. ; Boashash, B. ; Zoubir, A.M.
Author_Institution :
Queensland Univ. of Technol., Brisbane, Qld., Australia
Abstract :
Optimal concentration about the instantaneous frequency for polynomial frequency modulated signals was the first motivation behind the recently proposed class of time-frequency distributions called the polynomial Wigner-Ville distributions. Its performance analysis for estimating the instantaneous frequency is presented and a Cramer-Rao lower bound derived. A statistical comparison with a parametric method for estimating the instantaneous frequency based on the high-order ambiguity function is also included
Keywords :
Wigner distribution; frequency estimation; frequency modulation; higher order statistics; polynomials; signal processing; time-frequency analysis; Cramer-Rao lower bound; frequency modulated signals; high-order ambiguity function; instantaneous frequency estimation; optimal concentration; parametric method; performance analysis; polynomial FM signals analysis; polynomial Wigner-Ville distribution; statistical comparison; time-frequency distributions; Australia; Biomedical signal processing; Chirp modulation; Frequency estimation; Frequency modulation; Performance analysis; Polynomials; Signal analysis; Surveillance; Time frequency analysis;
Conference_Titel :
Digital Signal Processing Proceedings, 1997. DSP 97., 1997 13th International Conference on
Conference_Location :
Santorini
Print_ISBN :
0-7803-4137-6
DOI :
10.1109/ICDSP.1997.628002
