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Large-Scale Discrete Fourier Transform on TPUs
Published 2021-01-01Subjects: “…Discrete fourier transform…”
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Adaptive Local Polynomial Fourier Transform in ISAR
Published 2006-01-01“…<p/> <p>The adaptive local polynomial Fourier transform is employed for improvement of the ISAR images in complex reflector geometry cases, as well as in cases of fast maneuvering targets. …”
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Fourier-Transform-Rheology on linear polystyrene melts
Published 2001-06-01Subjects: “…fourier-transform rheology…”
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Correct Application of the Discrete Fourier Transform in Harmonics
Published 2008-04-01Subjects: Get full text
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126
MATHEMATICAL MODELING OF FOURIER TRANSFORM IMAGING SPECTROMETER
Published 2015-04-01“…Problems of mathematical modeling of Static Fourier Transform Imaging Spectrometers (SFTIS) for the Earth remote sensing from space are investigated. …”
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Review of MEMS Based Fourier Transform Spectrometers
Published 2020-02-01Subjects: “…fourier transform spectrometers…”
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128
The Application based on Fourier Transform in Time Lens
Published 2016-01-01“…Space lens can achieve compression and amplification of imaging function, and it has the nature of Fourier transform in light field. Then the time lens can also realize the compression and amplification of the light pulse and its Fourier transform. …”
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129
(Nearly) sample-optimal sparse fourier transform
Published 2018“…We consider the problem of computing a k-sparse approximation to the discrete Fourier transform of an n-dimensional signal. Our main result is a randomized algorithm that computes such an approximation using O(k log n(log log n)[superscript O(1)]) signal samples in time O(k log[superscript 2] n(log log n)[superscript O(1)]), assuming that the entries of the signal are polynomially bounded. …”
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130
A Fourier transform for the quantum Toda lattice
Published 2021“…Drinfeld by constructing an ‘algebraic Fourier transform’ for the quantum Toda lattice of a complex reductive algebraic group G, which extends the classical ‘algebraic Fourier transform’ for its subalgebra $$D(T)^W$$ D ( T ) W of Weyl group invariant differential operators on a maximal torus. …”
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Properties and applications of the short-space fourier transform
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133
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Calculating machine for Fourier transforms and related expressions
Published 2004Subjects: Get full text
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135
Simple and practical algorithm for sparse fourier transform
Published 2012“…We consider the sparse Fourier transform problem: given a complex vector x of length n, and a parameter k, estimate the k largest (in magnitude) coe fficients of the Fourier transform of x. …”
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Faster GPS via the sparse fourier transform
Published 2014“…The fastest known algorithm for this problem is based on the Fourier transform and has a complexity of O(n log n), where n is the number of signal samples. …”
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137
Fourier transform infrared spectroscopy on cooking oils
Published 2013“…The purpose of this study is to optimize and characterize the cooking oils using Fourier Transform Infrared Spectroscopy (FTIR) in combination with the help of multivariate tool, Principal Component Analysis (PCA). …”
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On uncertainty principle of the local polynomial Fourier transform
Published 2013“…In terms of the signal concentration, comparisons among the short-time Fourier transform, the Wigner-Ville distribution and the second order LPFT are presented. …”
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Journal Article -
139
FOURIER-TRANSFORM METHOD FOR THE CLASSICAL TRAJECTORY PROBLEM
Published 1979“…Recent theoretical developments in classical bound-state dynamics, which make use of the geometrical structure in phase space known as an invariant toroid, can then be applied to collision problems. Fast Fourier transform techniques are used to construct the invariant toroid, which is the locus of an indefinitely extended nonperiodic classical trajectory. …”
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