DocumentCode
302793
Title
What are the joint time-frequency moments of a signal?
Author
Tacer, Berkant ; Loughlin, Patrick J.
Author_Institution
Dept. of Electr. Eng., Pittsburgh Univ., PA, USA
Volume
3
fYear
1996
fDate
7-10 May 1996
Firstpage
1427
Abstract
We investigate the question of what the joint moments of a signal are by considering the joint moments of the spectrogram for limiting cases of the window. Operator methods are also explored. Expressions for the joint moments are derived, which reveal the distorting effects of the spectrogram window. Knowledge of the joint moments of a signal may be useful in estimating positive time-frequency distributions, or in signal classification of nonstationary signals
Keywords
frequency estimation; signal processing; spectral analysis; time-frequency analysis; distorting effects; joint time-frequency moments; limiting window cases; nonstationary signals; positive time-frequency distributions; signal classification; spectrogram; spectrogram window; time-frequency estimation; Chirp; Equations; Frequency domain analysis; Kernel; Pattern classification; Spectrogram; Time frequency analysis;
fLanguage
English
Publisher
ieee
Conference_Titel
Acoustics, Speech, and Signal Processing, 1996. ICASSP-96. Conference Proceedings., 1996 IEEE International Conference on
Conference_Location
Atlanta, GA
ISSN
1520-6149
Print_ISBN
0-7803-3192-3
Type
conf
DOI
10.1109/ICASSP.1996.543929
Filename
543929
Link To Document