DocumentCode
388101
Title
On computing the smoothed Wigner distribution
Author
Garudadri, H. ; Beddoes, M.P. ; Benguerel, A-P. ; Gilbert, J. H V
Author_Institution
U.B.C., Vancouver, B.C., Canada
Volume
12
fYear
1987
fDate
31868
Firstpage
1521
Lastpage
1524
Abstract
In this paper, some aspects of the implementation of Wigner Distribution (WD) are discussed. In general, it is necessary to smooth the WD in order to study the underlying nature of the signal. It is shown that the WD smoothed for positivity is equivalent to a spectrogram in terms of time and frequency resolutions. An interpretation of the partially smoothed WD is presented. A FORTRAN subroutine to compute the smoothed WD (SWD) is included. The choice of smoothing parameters for partial smoothing and spectral wrap in the WD are discussed.
Keywords
Convolution; Distributed computing; Equations; Frequency domain analysis; Signal analysis; Signal resolution; Smoothing methods; Spectrogram; Speech; Time frequency analysis;
fLanguage
English
Publisher
ieee
Conference_Titel
Acoustics, Speech, and Signal Processing, IEEE International Conference on ICASSP '87.
Type
conf
DOI
10.1109/ICASSP.1987.1169861
Filename
1169861
Link To Document