Title :
Deconvolution for positive time-frequency distributions
Author :
Pitton, James W. ; Atlas, Les E. ; Loughlin, Patrick J.
Author_Institution :
Dept. of Electr. Eng., Washington Univ., Seattle, WA, USA
Abstract :
A method is presented for generating high-resolution time-frequency distributions (TFDs) which are everywhere nonnegative and satisfy the time and frequency marginals. These TFDs are obtained by deconvolution, wherein the effects of the smoothing window are removed from a spectrogram of the signal. The method may also be used to incorporate information from multiple spectrograms of the signal, thereby improving the result
Keywords :
spectral analysis; time-frequency analysis; deconvolution; frequency marginals; multiple spectrograms; positive time-frequency distributions; smoothing window; spectrogram; time marginals; Chirp; Convolution; Deconvolution; Distributed computing; Signal resolution; Smoothing methods; Spectral analysis; Spectrogram; Speech; Time frequency analysis;
Conference_Titel :
Signals, Systems and Computers, 1993. 1993 Conference Record of The Twenty-Seventh Asilomar Conference on
Conference_Location :
Pacific Grove, CA
Print_ISBN :
0-8186-4120-7
DOI :
10.1109/ACSSC.1993.342295
