Journal ArticleDOI
Signal duration and the Fourier transform
S.C. Pohlig
- Vol. 68, Iss: 5, pp 629-630
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TLDR
Using the variance measure of duration, it was shown that the duration of a signal is composed of two terms as mentioned in this paper, i.e., the duration in the zero-phase equivalent signal, and the variance of the phase derivative of the Fourier transformed signal.Abstract:
Using the variance measure of duration, it is shown that the duration of a signal is composed of two terms. The first term is the duration of the zero-phase equivalent signal, and the second term is the variance of the phase derivative of the Fourier transformed signal.read more
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References
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Proceedings ArticleDOI
Phase in speech and pictures
TL;DR: A similar experiment has been carried out with speech, showing that preservation of only the long-time phase retains many important features of the original speech.
Journal ArticleDOI
New Technique For Blind Deconvolution
TL;DR: In this article, the spectral magnitude of the image is smoothed by averaging over an ensemble of similar images and the estimate can be extended to degradations such as a defocused lens by thresholding the estimation magnitude to obtain zero crossings and adjusting the phase accordingly.