Search results for "Hardware architecture"

showing 10 items of 120 documents

NoC based virtualized accelerators as cloud services

2016

National audience; Hardware accelerators(HwAcc) provide good performance in computation intensive applications. Integrating hardware accelerators in a cloud environment is the optimal way to improve the quality of service. However, mapping all possible application statically into the reconfigurable fabric of the FPGA is rather impractical and prohibitively expensive in terms of resource and power consumption. This problem can be alleviated via time multiplexing the access to the underlying hardware resources, FPGA, by designing dynamically reconfigurable accelerators in the cloud. Similarly, the connection and communication between the accelerators and the reconfigurable control will not be…

[INFO.INFO-AR]Computer Science [cs]/Hardware Architecture [cs.AR][INFO.INFO-AR] Computer Science [cs]/Hardware Architecture [cs.AR][ INFO.INFO-AR ] Computer Science [cs]/Hardware Architecture [cs.AR][SPI.TRON] Engineering Sciences [physics]/ElectronicsComputingMilieux_MISCELLANEOUS[SPI.TRON]Engineering Sciences [physics]/Electronics[ SPI.TRON ] Engineering Sciences [physics]/Electronics
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Sharing spatial data with a 3D component as a collaborative and dissemination tool for archaeology: conceptual challenges and technical issues

2018

International audience; Due to INSPIRE directive, various spatial data infrastructure (SDI) were developed to support research activities. In practice, these toolsremain underexploited by researcher for many reasons. First, their use is time-consuming and researchers usually consider that they provide noimmediate benefits. Second, their use is often complex and needs a substantial investment for researchers who have a limited expertise in spatial data. Finally, often based on 2D GIS environment, they do not provide an adequate tool for collaborative research in archaeology. From this experience, an interdisciplinary team designed and developed an SDI based on GeOrchestra, synchronized with …

[INFO.INFO-AR]Computer Science [cs]/Hardware Architecture [cs.AR][INFO.INFO-AR] Computer Science [cs]/Hardware Architecture [cs.AR][SHS.ARCHEO] Humanities and Social Sciences/Archaeology and Prehistory[INFO.INFO-WB] Computer Science [cs]/Web3D visualization[SHS.ARCHEO]Humanities and Social Sciences/Archaeology and Prehistoryhistorical datametadata[INFO.INFO-WB]Computer Science [cs]/Webspatial data infrastructure[INFO]Computer Science [cs]web mapping[INFO] Computer Science [cs]
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Extensions matérielles pour processeurs embarqués de traitement d'images.

2007

12p; Le marché des imageurs embarqués est entré dans une ère nouvelle avec l'avènement des téléphones portables munis d'appareils photographiques et de caméras. Il est attendu qu'à l'horizon 2009, leur nombre dépassera celui de l'ensemble des appareils photos vendus depuis l'invention de la photographie, et ce qu'ils soient numériques ou non. Le marché des imageurs électroniques embarqués est donc un secteur porteur, notamment au travers de la téléphonie et de la visiophonie mobile. Les applications ne sont plus limitées à la simple photographie ou la transmission de vidéo ; les lecteurs de codes matrices, la reconnaissance de visages, la biométrie, ou la vision 3D sont des exemples parmi l…

[INFO.INFO-AR]Computer Science [cs]/Hardware Architecture [cs.AR][INFO.INFO-AR] Computer Science [cs]/Hardware Architecture [cs.AR]embarquéCMOSprocesseur[ INFO.INFO-AR ] Computer Science [cs]/Hardware Architecture [cs.AR]imageaméliorationC.1 C.3 C.4 I.4
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PROCEDE DE PRE-DISTORSION NUMERIQUE D’UN SIGNAL ET REPETEUR DE TELECOMMUNICATION INTEGRANT UN FILTRE A REPONSE IMPULSIONNELLE FINIE POUR METTRE EN OE…

2013

L'invention concerne un procédé de pré-distorsion numérique d'un signal de télécommunication traité dans un circuit électronique 100 intégrant un filtre à réponse impulsionnelle finie 321. Ce procédé consiste successivement: - à identifier, à la sortie du circuit 100, les paramètres de distorsions de phase et/ou d'amplitude du signal en fonction de la fréquence, - à partir des susdits paramètres de distorsions relevés, à générer, par un algorithme basé sur une interpolation, des coefficients permettant d'effectuer dans ledit filtre 321, des prédistorsions du signal numérique destinées à engendrer une précorrection des susdites distorsions, - à transférer lesdits coefficients de pré-distorsi…

[INFO.INFO-AR]Computer Science [cs]/Hardware Architecture [cs.AR][SPI.OTHER]Engineering Sciences [physics]/Other[INFO.INFO-AR] Computer Science [cs]/Hardware Architecture [cs.AR][ SPI.OTHER ] Engineering Sciences [physics]/Other[ SPI.SIGNAL ] Engineering Sciences [physics]/Signal and Image processing[INFO.INFO-SI]Computer Science [cs]/Social and Information Networks [cs.SI]Prédistorsion numérique[ INFO.INFO-ES ] Computer Science [cs]/Embedded SystemsRépéteurs[SPI.SIGNAL] Engineering Sciences [physics]/Signal and Image processing[INFO.INFO-MS]Computer Science [cs]/Mathematical Software [cs.MS][ INFO.INFO-SI ] Computer Science [cs]/Social and Information Networks [cs.SI][SPI.OTHER] Engineering Sciences [physics]/Other[INFO.INFO-SI] Computer Science [cs]/Social and Information Networks [cs.SI]Spline[SPI.TRON] Engineering Sciences [physics]/Electronics[INFO.INFO-ES] Computer Science [cs]/Embedded Systems[ SPI.TRON ] Engineering Sciences [physics]/Electronics[SPI.TRON]Engineering Sciences [physics]/Electronics[ INFO.INFO-MS ] Computer Science [cs]/Mathematical Software [cs.MS][INFO.INFO-MS] Computer Science [cs]/Mathematical Software [cs.MS]FIR filters[INFO.INFO-ES]Computer Science [cs]/Embedded Systems[ INFO.INFO-AR ] Computer Science [cs]/Hardware Architecture [cs.AR][SPI.SIGNAL]Engineering Sciences [physics]/Signal and Image processingFpga
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Noise characterization of analog to digital converters for amplitude and phase noise measurements

2017

International audience; Improvements on electronic technology in recent years have allowed the application of digital techniques in phase noise metrology where low noise and high accuracy are required, yielding flexibility in systems implementation and setup. This results in measurement systems with extended capabilities, additional functionalities and ease of use. In most digital schemes the Analog to Digital Converters (ADCs) set the ultimate performance of the system, therefore the proper selection of this component is a critical issue. Currently, the information available in literature describes in depth the ADC features only at frequency offsets far from the carrier. However, the perfo…

[SPI.OTHER]Engineering Sciences [physics]/OtherNoise temperatureThermal noiseNoise measurementComputer science1/f noise020208 electrical & electronic engineeringQuantum noise02 engineering and technologyNoise figure01 natural sciencesNoise floorNoise shapingComputer Science::Hardware ArchitectureElectric measurements0103 physical sciencesPhase noise0202 electrical engineering electronic engineering information engineeringElectronic engineeringEffective input noise temperatureOscillatorsThermal noise1/f noise Clocks Oscillators Electric measurements010301 acousticsInstrumentationClocksReview of Scientific Instruments
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Geometric and morphologic evolution of normal fault planes and traces from 2D to 4D data

2003

Abstract The detailed 3D geometry of normal fault planes is described and analysed using datasets from outcrop studies (2D), seismic surveys (3D) and analogue models (4D). Different geometric configurations of simple isolated normal faults are studied by reference to processes of normal fault propagation. When a normal fault propagates without interacting with other fault zones, the entire border of the principal plane displays characteristic connected secondary structures. These secondary structures cause bifurcations of the principal fault terminations. The along-strike terminations of the principal plane display typical bifurcation configurations (‘ear geometry‘). The orientation of the …

geographygeography.geographical_feature_categoryGeologyGeometryFault (geology)Computer Science::Hardware ArchitectureOrientation (geometry)Vertical directionGenetic modelEchelon formation3d geometryNormal faultComputer Science::Distributed Parallel and Cluster ComputingBifurcationGeologyJournal of Structural Geology
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VERS UNE ARCHITECTURE UNIFIÉE ET ZÉRO TEMPS MORT POUR L'INSTRUMENTATION NUCLÉAIRE

2014

National audience; Dans l’instrumentation nucléaire, et d’autres domaines tels que les applications de la physique des particules, l’analyse de signaux médicaux (Tomographie par Emission de Positons (TEP), Electro-EncephaloGraphie (EEG)) ou la détection de signaux radar, le signal mesuré est composé d’impulsions dont la date d’arrivée est aléatoire, et dont l’amplitude et la durée sont non-d´eterministes. La grande variété d’applications nécessite de disposer d’une architecture flexible pouvant être aisément reprogrammée. De plus, l’exigence de mesures en temps réel impose de disposer d’une grande capacité de calcul et de bande passante pour la mise en forme et l’extraction des caractéristi…

instrumentation[INFO.INFO-AR]Computer Science [cs]/Hardware Architecture [cs.AR][INFO.INFO-AR] Computer Science [cs]/Hardware Architecture [cs.AR][ INFO.INFO-TS ] Computer Science [cs]/Signal and Image Processing[INFO.INFO-TS] Computer Science [cs]/Signal and Image ProcessingDigital Pulse Processing[SPI.TRON] Engineering Sciences [physics]/Electronicselectronic architecture[ SPI.TRON ] Engineering Sciences [physics]/Electronics[SPI.TRON]Engineering Sciences [physics]/Electronicsreal time measurementimpulse separation[INFO.INFO-TS]Computer Science [cs]/Signal and Image ProcessingDigital Signal Processing[ INFO.INFO-AR ] Computer Science [cs]/Hardware Architecture [cs.AR]Digital Architecturesignal processingnuclear instrumentation
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Vers une architecture électronique unifiée et zéro temps mort pour l'instrumentation nucléaire

2014

International audience; Dans l'instrumentation nucléaire, et d'autres domaines tels que les applications de la physique des particules, l'analyse de signaux médicaux (Tomographie par Émission de Positons (TEP), Électro-EncéphaloGraphie (EEG)) ou la détection de signaux radar, le signal mesuré est composé d'impulsions dont la date d'arrivée est aléatoire, et dont l'amplitude et la durée sont non déterministes. La grande variété d'applications nécessite de disposer d'une architecture flexible pouvant être aisément reprogrammée. De plus, l'exigence de mesures en temps réel impose de disposer d'une grande capacité de calcul et de bande passante pour la mise en forme et l'extraction des caractér…

instrumentation[INFO.INFO-AR]Computer Science [cs]/Hardware Architecture [cs.AR][INFO.INFO-AR] Computer Science [cs]/Hardware Architecture [cs.AR]detectorElectronic architectureimpulse processingspectrum analysis[PHYS.PHYS.PHYS-INS-DET] Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det]sensor[PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det][ INFO.INFO-AR ] Computer Science [cs]/Hardware Architecture [cs.AR]real time processingsignal processingnuclear instrumentation
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Ghost stochastic resonance in FitzHugh–Nagumo circuit

2014

International audience; The response of a neural circuit submitted to a bi-chromatic stimulus and corrupted by noise is investigated. In the presence of noise, when the spike firing of the circuit is analysed, a frequency not present at the circuit input appears. For a given range of noise intensities, it is shown that this ghost frequency is almost exclusively present in the interspike interval distribution. This phenomenon is for the first time shown experimentally in a FitzHugh-Nagumo circuit.

noise[ INFO.INFO-TS ] Computer Science [cs]/Signal and Image ProcessingInterval distribution[ NLIN.NLIN-CD ] Nonlinear Sciences [physics]/Chaotic Dynamics [nlin.CD][ SPI.SIGNAL ] Engineering Sciences [physics]/Signal and Image processingStochastic ResonanceComputer Science::Hardware ArchitectureComputer Science::Emerging Technologies[NLIN.NLIN-PS]Nonlinear Sciences [physics]/Pattern Formation and Solitons [nlin.PS][INFO.INFO-TS]Computer Science [cs]/Signal and Image ProcessingElectronic engineering[ NLIN.NLIN-PS ] Nonlinear Sciences [physics]/Pattern Formation and Solitons [nlin.PS]Electrical and Electronic EngineeringMathematicsCircuit noiseQuantitative Biology::Neurons and CognitionArtificial neural networkStochastic processMathematical analysisneural networksFitzhugh nagumo[ SPI.TRON ] Engineering Sciences [physics]/Electronics[SPI.TRON]Engineering Sciences [physics]/ElectronicsHarmonics[NLIN.NLIN-CD]Nonlinear Sciences [physics]/Chaotic Dynamics [nlin.CD]Nonlinear network analysis[SPI.SIGNAL]Engineering Sciences [physics]/Signal and Image processingElectronics Letters
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Single Event Upsets Induced by Direct Ionization from Low-Energy Protons in Floating Gate Cells

2017

Floating gate cells in advanced NAND Flash memories, with single-level and multi-level cell architecture, were exposed to low-energy proton beams. The first experimental evidence of single event upsets by proton direct ionization in floating gate cells is reported. The dependence of the error rate versus proton energy is analyzed in a wide energy range. Proton direct ionization events are studied and energy loss in the overlayers is discussed. The threshold LET for floating gate errors in multi-level and single-level cell devices is modeled and technology scaling trends are analyzed, also discussing the impact of the particle track size. peerReviewed

protonitNuclear and High Energy PhysicsProtonfloating gate devicesNAND gateFlash memories01 natural sciencesComputer Science::Hardware ArchitectureIonizationFlash memories; floating gate devices; protons; single event effects; Nuclear and High Energy Physics; Nuclear Energy and Engineering; Electrical and Electronic Engineering0103 physical sciencesHardware_ARITHMETICANDLOGICSTRUCTURESElectrical and Electronic Engineeringflash-muistit010302 applied physicsPhysicsRange (particle radiation)ta114ta213protons010308 nuclear & particles physicsbusiness.industryElectrical engineeringsingle event effectsNon-volatile memoryNuclear Energy and EngineeringLogic gateAtomic physicsbusinessEvent (particle physics)Energy (signal processing)IEEE Transactions on Nuclear Science
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