Results 21 to 30 of about 1,251,037 (325)
Fast DBF for conformal arrays based on 2D Fourier decomposition
The Journal of Engineering, 2019 Digital array radars with conformal arrays are attractive for platforms with limited installation space such as aircraft and unmanned aerial vehicles.
Yuan Yao, Guangxin Wu
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Beilstein Journal of Nanotechnology, 2020 Atomic force microscopy (AFM) is an important tool for measuring a variety of nanoscale surface properties, such as topography, viscoelasticity, electrical potential and conductivity.
Berkin Uluutku, Santiago D. Solares
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The cylindrical Fourier transform [PDF]
, 2010 In this paper we devise a so-called cylindrical Fourier transform within the Clifford analysis context. The idea is the following: for a fixed vector in the image space the level surfaces of the traditional Fourier kernel are planes perpendicular to that
A. Erdélyi +5 more
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Krawtchouk transforms and convolutions
Bulletin of Mathematical Sciences, 2020 We present an operator calculus based on Krawtchouk polynomials, including Krawtchouk transforms and corresponding convolution structure which provides an inherently discrete alternative to Fourier analysis.
Philip Feinsilver, René Schott
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The Fourier analysis in inhomogeneous media
St. Petersburg Polytechnical University Journal: Physics and Mathematics, 2023 In the paper, the definition and basic properties of the Fourier transform (FT) are discussed. It has been shown with specific examples that integral solutions of the model inhomogeneous equation, the nonstationary Cauchy problem on an inhomogeneous ...
Gnevyshev Vladimir, Belonenko Tatyana
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Entropy, 2019 What is the value of just a few bits to a guesser? We study this problem in a setup where Alice wishes to guess an independent and identically distributed (i.i.d.) random vector and can procure a fixed number of k information bits from Bob, who has ...
Nir Weinberger, Ofer Shayevitz
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Families of spectral sets for Bernoulli convolutions [PDF]
, 2010 In this paper, we study the harmonic analysis of Bernoulli measures. We show a variety of orthonormal Fourier bases for the L^2 Hilbert spaces corresponding to certain Bernoulli measures, making use of contractive transfer operators.
Karen +3 more
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Propagation of shock wave of nitrogen gas in Titan stratosphere
Journal of Taibah University for Science, 2021 Nitrogen gas is considered one of the significant standard gases in stratosphere of Titan, Saturn's largest moon, which represents almost 98.4% of Titan atmosphere chemical composites.
H. G. Abdelwahed, Abeer A. Mahmoud
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Известия ТИНРО, 2021 Time series of air temperature and sea surface temperature in South Kuril region in July and August are extrapolated to 2020–2024 using modified method of Fourier decomposition. Both cyclic harmonic components and linear trend are accounted.
T. A. Shatilina +2 more
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On twisted Fourier analysis and convergence of Fourier series on discrete groups
, 2008 We study norm convergence and summability of Fourier series in the setting of reduced twisted group $C^*$-algebras of discrete groups. For amenable groups, F{\o}lner nets give the key to Fej\'er summation.
A. Connes +84 more
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