Results 1 to 10 of about 1,047,980 (279)
On the inverse windowed Fourier transform [PDF]
IEEE Transactions on Information Theory, 1999 The inversion problem concerning the windowed Fourier transform is considered. It is shown that, out of the infinite solutions that the problem admits, the windowed Fourier transform is the "optimal" solution according to a maximum-entropy selection criterion.
Rebollo Neira, Laura +1 more
core +8 more sources
Efficient cosine-windowed cross-correlation for intermediate deformable image registration [PDF]
Scientific ReportsDeformable image registration is commonly included in population and longitudinal medical imaging analysis pipelines. Initializing deformable registration with the results of affine registration, where global misalignments have been reduced, can improve ...
Iman Aganj
doaj +2 more sources
On the Windowed Fourier Transform and Wavelet Transform of Almost Periodic Functions
Applied and Computational Harmonic Analysis, 2001 In the paper, a theory of windowed Fourier transforms and wavelet transforms for spaces of bounded power signals and almost periodic functions is presented. Relations with shift-invariant operators and linear systems as well as applicability to general functions of bounded power are discussed. Further, the associated Parseval type relations are derived
J R Partington
exaly +3 more sources
Research of vibrations of vertical component of cutting force during turning [PDF]
Омский научный вестник, 2021 A method for localizing bands of vertical component of the cutting force in time spectrum during metal turning has been established. The method for determining the source of spectral components is based on the windowed Fourier transform.
E. V. Artamonov +2 more
doaj +1 more source
Frontiers in Earth Science, 2023 The day/night band channel on the JPSS series of satellites can detect the light and dark fringes of oceanic internal waves due to the reflectivity difference caused by the roughness of the sea surface under moon flare conditions.
Hao Li +5 more
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Journal of Inequalities and Applications, 2022 The windowed linear canonical transform is a natural extension of the classical windowed Fourier transform using the linear canonical transform. In the current work, we first remind the reader about the relation between the windowed linear canonical ...
Mawardi Bahri
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Adaptive Oscillation Suppression Strategy for Wind Farms Based on Windowed FFT
Zhongguo dianli, 2022 Regarding the oscillation phenomenon in large-scale wind power transmission systems, the existing suppression strategies can hardly quickly and effectively suppress the oscillation when the oscillation frequency changes. To solve this problem, this paper
Shuo MIAO +5 more
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Dispersion analysis of spaced antenna scintillation measurement [PDF]
Annales Geophysicae, 2009 We present a dispersion analysis of the phase of GPS signals received at high latitude. Basic theoretical aspects for spectral analysis of two-point measurement are given.
M. Grzesiak, A. W. Wernik
doaj +1 more source
A method for determining arc breakdown in low-voltage electrical networks [PDF]
Serbian Journal of Electrical Engineering, 2023 In low voltage distribution networks, there is a high risk of fires caused by wiring faults that lead to short circuits. Arcing protection devices (ARCs) already exist, but experiments show that they also often do not disable such faults.
Rashevskaya Marina +3 more
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Photonics, 2023 In this paper, we report the use of crossed polarizer technique to measure the differential group delay (DGD) of few-mode optical fiber (FMF). The windowed Fourier transform (WFT) is applied in the analysis of beat length measurement in the spectral ...
Cheng Wu +7 more
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