Title :
A new reassigned time-frequency representation
Author :
Xiumei Li ; Guoan Bi
Author_Institution :
Sch. of EEE, Nanyang Technol. Univ., Singapore, Singapore
Abstract :
In this paper, the reassignment method is applied to the local polynomial periodogram to improve the readability of the time-frequency representation. Some interesting properties of the reassigned local polynomial periodogram are demonstrated. Simulations are presented to show that the reassigned local polynomial periodogram can improve the readability of the time-frequency representation, compared to the reassigned spectrogram and reassigned smoothed pseudo Wigner-Ville distribution.
Keywords :
polynomials; signal representation; time-frequency analysis; reassigned local polynomial periodogram; reassigned smoothed pseudo Wigner-Ville distribution; reassigned spectrogram; reassignment method; time-frequency representation; Bismuth; Chirp; Fourier transforms; Polynomials; Spectrogram; Time-frequency analysis;
Conference_Titel :
Signal Processing Conference, 2008 16th European
Conference_Location :
Lausanne