Title :
The Gabor expansion based positive distribution
Author :
Pedersen, Fleming
Author_Institution :
Dept. of Commun. Technol., Aalborg Univ., Denmark
Abstract :
This paper presents and studies a time frequency distribution obtained from a Gabor expansion of a signal. The distribution is named the positive Gabor spectrogram, and is a new positive-like distribution with correct marginal distributions. Two side effects of correct marginals are non-additivity and time frequency fading. These are phenomena of a statistically correct distribution which do not agree with our intuitive expectation of a time frequency representation
Keywords :
signal representation; spectral analysis; statistical analysis; time-frequency analysis; Gabor expansion based positive distribution; correct marginal distributions; non-additivity; positive Gabor spectrogram; signal analysis; signal representation; statistically correct distribution; time frequency distribution; time frequency fading; time frequency representation; Communications technology; Digital signal processing; Entropy; Fading; Signal analysis; Spectrogram; Time frequency analysis;
Conference_Titel :
Acoustics, Speech and Signal Processing, 1998. Proceedings of the 1998 IEEE International Conference on
Conference_Location :
Seattle, WA
Print_ISBN :
0-7803-4428-6
DOI :
10.1109/ICASSP.1998.681750
