Results 91 to 100 of about 744,050 (371)
Fractional Fourier Transform of Boehmians [PDF]
IOSR Journal of Mathematics, 2013 In this paper we introduce two spaces of Boehmians each of which contains the dual of a certain space of entire functions. Both these spaces of Boehmians are shown to be isomorphic to each other under the Fractional Fourier transform. We extend the theory of the Fractional Fourier transform on this new Boehmians space.
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Near‐Field Phonon Nanoscopy and Imaging of Structural Variants in Mixed Phase BiFeO3
Advanced Functional Materials, EarlyView.Nano‐Fourier transform infrared spectroscopy and scattering scanning near‐field optical microscopy imaging reveal the phonon response of nanoscale phase variants in mixed‐phase BiFeO3 (BFO). Direct mid‐infrared imaging of associated distinct vibrational signatures is used as a non‐invasive optical detection method for electrical switching of ...
Dawei Zhang +8 more
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Discrete fractional Fourier transform: Vandermonde approach [PDF]
arXiv, 2016 Based on the definition of the Fourier transform in terms of the number operator of the quantum harmonic oscillator and in the corresponding definition of the fractional Fourier transform, we have obtained the discrete fractional Fourier transform from the discrete Fourier transform in a completely analogous manner. To achieve this, we have used a very
arxiv
Control of Ferromagnetism of Vanadium Oxide Thin Films by Oxidation States
Advanced Functional Materials, EarlyView.The nonstoichiometric VOx exhibits a distinct ferromagnetic hysteresis loop and demonstrates a high magnetic susceptibility (χ=dMdH$ = \frac{{dM}}{{dH}}\;$∼10). Micromagnetic simulations show the results of the “partial volume fraction ferromagnetic phase model” for VOx/Co/Pt structure.
Kwonjin Park +9 more
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Joint estimation of doppler frequency and DOA-DOD based on FRFT in bistatic MIMO radar system
Tongxin xuebao, 2012 A novel method for the joint parameters estimate in the bistatic multiple-input multiple-output (MIMO) radar system was proposed.Firstly,a novel signal model to accurately estimate parameters of the et was proposed.Two Doppler parameters,initial Doppler ...
Li LI, Tian-shuang QIU
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Smart noise jamming suppression method based on fast fractional filtering
The Journal of Engineering, 2019 Smart noise jamming based on digital radio frequency memory (DRFM) has both oppressive jamming effect and deceptive jamming effect, and it is difficult to be effectively suppressed by traditional anti-jamming methods.
Bowen Han +3 more
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On Hilfer-Prabhakar fractional derivatives Sawi transform and its applications to fractional differential equations [PDF]
arXiv, 2023 The goal of this paper is to study the Sawi transform and its relationship to Hilfer-Prabhakar and regularized Hilfer-Prabhakar fractional derivatives, as well as to present some lemmas related to the Sawi transform. Additionally, the paper aims to find solutions for Cauchy type fractional differential equations using Hilfer-Prabhakar fractional ...
arxiv
Improved discrete fractional Fourier transform [PDF]
Optics Letters, 1997 The fractional Fourier transform is a useful mathematical operation that generalizes the well-known continuous Fourier transform. Several discrete fractional Fourier transforms (DFRFT's) have been developed, but their results do not match those of the continuous case. We propose a new DFRFT.
Soo-Chang Pei, Min-Hung Yeh
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Advanced Functional Materials, EarlyView.A lack of standard approaches for testing and reporting the performance of metal halide perovskites and organic semiconductor radiation detectors has resulted in inconsistent interpretation of performance parameters, impeding progress in the field. This Perspective recommends key metrics and experimental details, which are suggested for reporting in ...
Jessie A. Posar +8 more
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Fractional Fourier transform of coherent optical systems application
Revista Técnica de la Facultad de Ingeniería, 2012 In 1980 Namias presented the Fourier transform of Fractional order as a generalization of the well known Fourier transform, establishing the mathematic character of this with its set of theorems and properties. Initially he used it to solve problems with
Carlos Jiménez Ruiz +2 more
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