Experimental demonstration of negative-valued polarization quasiprobability distribution [PDF]
, 2017 Polarization quasiprobability distribution defined in the Stokes space shares many important properties with the Wigner function for position and momentum.
Chekhova, M. +5 more
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Discrete Bai distribution function and its sampling requirements [PDF]
In recent years, many phase space distributions have been proposed, and one of the more independently interesting is the Bai distribution function (BDF).
Zheng, Yushi +2 more
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The multiresolution Fourier transform : a general purpose tool for image analysis [PDF]
The extraction of meaningful features from an image forms an important area of image analysis. It enables the task of understanding visual information to be implemented in a coherent and well defined manner.
Calway, Andrew David
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The multiresolution Fourier transform and its application to polyphonic audio analysis [PDF]
Many people listen to, or at least hear, some form of music almost every day of their lives. However, only some of the processes involved in creating the sensations and emotions evoked by the music are understood in any detail.
Pearson, Edward R. S.
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Aquisição e processamento de sons crepitantes para auxílio ao diagnóstico de enfermidades pulmonares [PDF]
, 2011 Tese (doutorado) - Universidade Federal de Santa Catarina, Centro Tecnológico, Programa de Pós-Graduação em Engenharia Elétrica, Florianópolis, 2011O presente trabalho aborda o desenvolvimento e a implementação de um sistema de aquisição de sons ...
Ponte, Daniel Ferreira da
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, 2018 In this paper, we propose a new method to estimate instantaneous frequency using a combined approach based on the discrete linear chirp transform (DLCT) and the Wigner distribution (WD). The DLCT locally represents a signal as a superposition of linear chirps while the WD provides maximum energy concentration along the instantaneous frequency in the ...
Alkishriwo, Osama A., Chaparro, Luis F.
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TIME-FREQUENCY SIGNAL PROCESSING ALGORITHMS: ANALYSIS AND SYNTHESIS USING WIGNER DISTRIBUTIONS [PDF]
, 1984 A tutorial review of several mixed time-frequency representations of signals and systems is presented. Emphasis is placed on the background, extensions, inter-relationships, and applications of the Gabor logon, the Short-time Fourier transform, the ...
BOUDREAUX-BARTELS, GLORIA FAYE
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Optimization of the Realization of Quadratic Discrete Time-Frequency Distributions as a Matlab Toolbox [PDF]
, 2004 An optimised time-frequency signal analysis software tool is presented here as a MATLAB toolbox. This toolbox is implemented using existing and novel methods for a specific class of Time-Frequency Distributions (TFDs) called quadratic TFDs. This is first
Boashash, Boualem, O'Toole, John
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The Discrete Linear Chirp Transform and its Applications [PDF]
, 2013 In many applications in signal processing, the discrete Fourier transform (DFT) plays a significant role in analyzing characteristics of stationary signals in the frequency domain. The DFT can be implemented in a very efficient way using the fast Fourier
Alkishriwo, Osama
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Image feature analysis using the Multiresolution Fourier Transform [PDF]
The problem of identifying boundary contours or line structures is widely recognised as an important component in many applications of image analysis and computer vision.
Davies, Andrew Richard
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