Top PDF Fourier Based Adaptive Waveform
Fourier Based Adaptive Waveform
... alternative waveform called Fourier-based adaptive waveform (FAW), which adapts the time-frequency tiling of the modulated signal to the frequency fading properties of the en- ...
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Full Waveform Inversion by Proximal Newton Method using Adaptive Regularization
... An important property of the proposed algorithms is that they only need the output of the regularizer without requiring any in- formation about its functional form and statistical properties. This black-box ...
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Variable density sampling based on physically plausible gradient waveform. Application to 3D MRI angiography
... Compressed Sensing (CS) provides a theoretical framework to jus- tify the downsampling of k-space (2D or 3D Fourier domain) in Magnetic Resonance Imaging (MRI). CS-MRI is usually based on independent random ...
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Adaptive ESPRIT algorithm based on the PAST subspace tracker
... the Fourier transform remains a prominent tool for frequency estimation, the ESPRIT algorithm [2] overcomes the resolution limit of the Fourier analysis and provides straight estimates of the model ...an ...
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3D Model Retrieval based on Adaptive Views Clustering
... based similarity to implement a 2D sketch query interface. In the preprocessing stage, a descriptor of 3D model is obtained by 13 thumbnail images of boundary contour as seen from 13 view directions. Using aspect ...
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Single-shot CEP drift measurement at arbitrary repetition rate based on dispersive Fourier transform
... is found as decimating a data set is not equivalent to low-pass filtering the data [23]. After decimation, high-frequency noise contributions are aliased into the lower frequency region, which means that the overall ...
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Adaptive Waveform Learning: A Framework for Modeling Variability in Neurophysiological Signals
... Using previously epoched spike segments, E-AWL produced 1077 detailed decompositions of the spikes into several components. 1078 In addition, it revealed a hidden oscillatory artefact in the data. 1079 In turn, C-AWL did ...
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A 3-D Search engine based on Fourier series
... al. based on surface geometry, is recommended by MPEG-7 ...descriptor based on 2D views named Adaptive Views Clustering ...[1]. Based on the statistics, Osada et ...ray based feature ...
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Transformée de Fourier discrète
... de Fourier rapide permet aussi de réaliser un algorithme de multiplication rapide (en O(n log n)) de deux polynômes de degré inférieurs ou égaux à n − 1, basé sur le principe de l’interpolation polynomiale : un ...
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Théorème de Fourier-Plancherel
... Théorème 2. Il existe un unique isomorphisme F : L 2 pRq Ñ L 2 pRq, f fiÑ p f qui prolonge la transformée de Fourier sur L 1 pRq X L 2 pRq. De plus, pour tout f, g P L 2 pRq, on a p p f , pgq L 2 “ 2⇡ pf, gq L 2 et ...
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An Adjoint-Based Adaptive Ensemble Kalman Filter
... In the hybrid scheme, the estimated background error covariance ~ P is defined as ~P 5 (1 2 g)P 1 gB. (15) After a series of tests in which g 2 f0, 0.1, 0.2, . . . , 0.9, 1g, we used g 5 0.1 as it yielded the smallest ...
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Adaptive-ID Secure Revocable Identity-Based Encryption
... Our Contribution. We describe an IBE scheme endowed with a similar and equally efficient revocation mechanism as in the BGK system while reaching security in the stronger adaptive- ID sense (as originally defined ...
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Optical response of a hematite coating: ellipsometry data versus Fourier-based computations
... numerical Fourier-based computations to predict the optical properties of the coating. In these FFT calculations, we used the quasi-static approximation of the Maxwell equations. To take into account the ...
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Inversion de Fourier dans L1
... 3.9 Inversion de Fourier dans L 1 pR d q Référence : J.M. Bony, Cours d’analyse - Théorie des distributions et analyse de Fou- rier, les Éditions de l’École Polytechnique, 2001. Leçons concernées : 234, 235, 236, ...
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Design of adaptive PID controllers based on adaptive Smith predictor for ultra-local model control
... is based on the algebraic derivation techniques introduced by ...delay based on the knowledge of studied system parameters and, in a second step, to identify simultaneously the delay and the parameters from ...
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Waveform inversion through MBTT formulation
... L’archive ouverte pluridisciplinaire HAL, est destinée au dépôt et à la diffusion de documents scientifiques de niveau recherche, publiés ou non, émanant des établissements d’enseignemen[r] ...
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Duality Methods for Waveform Inversion
... Unit´e de recherche INRIA Lorraine, Technopˆole de Nancy-Brabois, Campus scientifique, 615 rue du Jardin Botanique, BP 101, 54600 VILLERS LES NANCY Unit´e de recherche INRIA Rennes, Iris[r] ...
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Evil waveform test-bed design
... evil waveform on the correlation ...evil waveform creates a plateau of width ∆ on the correlation function and shifts the correlation function by ...
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Ultra-local model control based on an adaptive observer
... d (t) + K P e (t) + K I R e (t) α (7) where α is a non-physical parameter which must be chosen such that F (t) and αu (t) have the same order of magnitude. The identification of both parameters F and α is the most ...
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Adaptive load control for IoT based on satellite communications
... Several terrestrial cellular IoT systems are already operational based for instance on Sigfox or LoRa radio technology. The Third Generation Partnership (3GPP), has developed the Narrow Band IoT (Nb-IoT) [3], a ...
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