Discrete Fourier transform
A Parallel Framework with Block Matrices of a Discrete Fourier Transform for Vector Valued Discrete Time Signals
... Copyright © 2015 Pablo Soto-Quiros. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the ...
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TítuloVehicle Classification using the Discrete Fourier Transform with Traffic Inductive Sensors
... Abstract: Inductive Loop Detectors (ILDs) are the most commonly used sensors in traffic management systems. This paper shows that some spectral features extracted from the Fourier Transform (FT) of ...
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Capitulo 11 Aplicaciones con la DFT (V13_02_02)
... de Fourier, designada con frecuencia por la abreviatura DFT (del inglés Discrete Fourier Transform), y a la que en ocasiones se denomina transformada de Fourier finita, es una operación ...
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The fractional Fourier transform and quadratic field magnetic resonance imaging
... fractional Fourier transform (FrFT) is revisited in the framework of strongly continuous periodic semigroups to restate known results and to explore new properties of the ...the Fourier or k-space in ...
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Compresión de señales ECG sobre FPGA utilizando un esquema modificado de convolución de la Transformada Wavelet Discreta
... This paper presents FPGA design of ECG compression by using the Discrete Wavelet Transform (DWT) and one lossless encoding method. Unlike the classical works based on off-line mode, the current work allows ...
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Application of the fractional Fourier transform to image reconstruction in MRI
... Traditionally, MRI reconstruction is performed applying an inverse Fourier Transform (FT) of the acquired MR signal. This method rests on the base that the object has been magnetized with a perfectly ...
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Images compression process in the radiological service unit as an infrastructure component in the colombian health model.
... the discrete compression irreversible ...the Discrete Wavelete Transform (DWT) (a); the error detail of image magnification (b); the detail amplification failure of image with MPEG-encoded to a ...
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Fast algorithm for H.264/AVC intra prediction based on discrete wavelet transform
... This article shows a new algorithm for fast partition mode algorithm based on Discrete Wavelet Transform (DWT). It allows reducing the number of candidate modes to those which are strictly defined for each ...
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Fourier transform microwave spectroscopy of Ac Ser NH2: the role of side chain interactions in peptide folding
... microwave radiation pulse of 0.3 ms duration was applied to polarize all the vaporized molecules. The registered free induction decay was then converted to the frequency domain by Fourier transformation. All the ...
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Estimation of Symmetric Channels for Discrete Cosine Transform Type-I Multicarrier Systems: A Compressed Sensing Approach
... of Discrete Cosine Transforms (DCTs) have been studied in the literature, and for each one of them the corresponding extension technique has been proposed [6, 8, 9, ...
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A thermostable laccase from Thermus sp. 2.9 and its potential for delignifcation of Eucalyptus biomass
... Laccases are multicopper oxidases that are being studied for their potential application in pretreatment strategies of lignocellulosic feedstocks for bioethanol production. Here, we report the expression and ...
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Complexity and Quality Optimization for Multi-View plus Depth Video Coding
... the Discrete Cosine Transform (DCT) that, as it is widely known, is used to reduce the correlation of the image data in many of the video compression ...
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Water-Induced Structural Changes in Crown Ethers from Broadband Rotational Spectroscopy
... Fast Fourier transformation to the frequency domain yielded the rotational spectrum of all polar species sufficiently abundant in our jet, such as conformers, clusters with different amounts of water molecules ...
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Matemáticas avanzadas para ingeniería-O'Neil
... Complex Fourier Coeffi cients”, por James ...de Fourier, una herramienta que Garwin necesitaba para su propio ...de Fourier, rápidamente se difun- dió la noticia sobre el programa de Cooley, y fue tan ...
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An extension of some properties for the Fourier transform operator on $L^p(\mathbb{R})$ spaces
... 3. Henstock–Kurzweil Fourier transform and L p ( R ) spaces In accordance with Definitions 2.7 and 2.10, there are several spaces where the Fourier transform can be defined. Theorem 3.3 and ...
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Fourier-Transform spectrometer implemented in silicon-based spiral waveguides
... El funcionamiento del dispositivo fue comprobado mediante dos tipos distintos de análisis numérico del patrón de salida. En primer lugar se utilizó una técnica de búsqueda espectral [10], basada en la comparación del ...
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Continuous vs. discrete fractional Fourier transforms
... the Fourier transform (1) corresponds to = ...canonical transform operators C(M ) actually represent the double cover of the group Sp(2; R) of 2 × 2 real symplectic matrices M , called the ...
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Contribución a la cancelación de errores en medida de antenas en campo próximo mediante técnicas de filtrado
... Tras este estudio, en el capítulo 4, se han realizado simulaciones en Matlab de un array de dipolos plano rectangular donde se tomaban medidas del campo radiado por estos a distancia de campo cercano y se realizaba la ...
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Fourier analysis and the fast Fourier transform
... Fast Fourier Transform ...of Fourier transforms of vast data sets, such as those describing large-size two-dimensional images, in amazingly short ...of Fourier analysis, namely the (continu- ...
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Gevrey multiscale expansions of singular solutions of PDEs with cubic nonlinearity
... The Banach spaces defined in this section are adequate modifications of those appearing in [18, 19]. They incorporate both, exponential decay with respect to m variable which is linked to Fourier transform, ...
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