Results 21 to 30 of about 113,812 (347)
Application of time-frequency spectral analysis methods
Trudy Odesskogo Politehničeskogo Universiteta, 2015 In this article the limited application of the non-stationary signals spectra classical analysis using the Fourier transform is substantiated. It is shown that Fourier transform has benefits at periodic signals analysis and limitations when non ...
Yuriy K. Filipsky +2 more
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Determining best window size for an improved Gabor transform in EMG signal analysis [PDF]
, 2018 Electromyography EMG is a standout amongst the most regularly utilized tools to study human muscle condition. But due to the intricate attributes of the EMG itself, time-frequency distributions such as Gabor transform and spectrogram are more preferred ...
Abdullah, A. R. +9 more
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Delta function of the Fourier transform [PDF]
E3S Web of ConferencesIn the analysis of the double window Fourier transform, it is found that both components of the direct transformation contain an equal amount of information sufficient to restore the original time signal. A double conversion diagram has been constructed.
Parfentyev Nikolay +2 more
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Improving Census Transform by High-Pass with Haar Wavelet Transform and Edge Detection
Sensors, 2020 One of the common methods for measuring distance is to use a camera and image processing algorithm, such as an eye and brain. Mechanical stereo vision uses two cameras to shoot the same object and analyzes the disparity of the stereo vision.
Jiun-Jian Liaw +4 more
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Relations entre Psi_B et quelques représentations temps-fréquence [PDF]
, 2010 Psi_B operator is an energy operator that measures the interactions between two complex signals. In this letter, new properties of Psi_B operator are presented.
BOUDRAA, Abdel-Ouahab
core +1 more source
Application of time-frequency spectral analysis methods
Trudy Odesskogo Politehničeskogo Universiteta, 2014 In this article the limited application of the non-stationary signals spectra classical analysis using the Fourier transform is substantiated. It is shown that Fourier transform has benefits at periodic signals analysis and limitations when non ...
Ю. К. Філіпський +2 more
doaj +4 more sources
Axioms, 2013 The properties of the Gabor and Morlet transforms are examined with respect to the Fourier analysis of discretely sampled data. Forward and inverse transform pairs based on a fixed window with uniform sampling of the frequency axis can satisfy ...
Robert W. Johnson
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Two Dimensional Short Time Hartley Transforms
Sultan Qaboos University Journal for Science, 2016 The Hartley transform, as in the case of the Fourier transform, is not suitably applicable to non-stationary representations of signals whose statistical properties change as a function of time.
Narasimman Sundararajan +2 more
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CoRR, 2023 arXiv admin note: substantial text overlap with arXiv:2209 ...
Zhemin Zhang, Xun Gong 0002
openaire +2 more sources
Geomagnetically Induced Currents: Frequency Spectra and Threats to Voltage Stability
IEEE Access, 2022 Geomagnetically induced currents are induced after a complex interaction between the sun and earth’s magnetic field. GICs may cripple power systems leading to voltage collapse and a drop in power quality.
Pitambar Jankee +4 more
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