Title :
Robust S-transform based on L-DFT
Author :
Sejdic, Ervin ; Djurovic, Igor
Author_Institution :
Bloorview Res. Inst., Univ. of Toronto, Toronto, ON, Canada
Abstract :
Time-frequency representations of signals obtained by the S-transform can be very sensitive to the presence of ??-stable noise. An algorithm for the robust S-transform is introduced. The proposed scheme is based on the L-DFT. The results of conducted numerical analysis show a significantly enhanced performance of the proposed scheme compared to the standard S-transform.
Keywords :
discrete Fourier transforms; noise; numerical analysis; signal representation; time-frequency analysis; ??-stable noise; L-DFT; discrete Fourier transform; numerical analysis; robust S-transform algorithm; time-frequency signal representations;
Journal_Title :
Electronics Letters
DOI :
10.1049/el.2010.2334
