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bruit de caractère impulsif

impulsive noise

sciences naturelles et appliquées - iate.europa.eu

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Reducing impulsive noise in dsl systems - robustness and delayA canonical piece-wise-linear filter (CPWL) realization is proposed as part of the scheme for non linear time - domain equalization (TEQ) aiming impulsive noise interference reduction in xDSL transmission systems....

général - core.ac.uk - PDF: citeseerx.ist.psu.edu

Impulsive noise cancellation based on an iterative methodIn this paper we will propose a new method to recover bandlimited signals corrupted by impulsive noise....

PDF: citeseerx.ist.psu.edu

Block-sparse impulsive noise reduction in ofdm systems - a novel iterative bayesian approachUsing a novel block iterative Bayesian algorithm (Block-IBA), this paper presents a new impulsive noise reduction method for OFDM systems....

PDF: dx.doi.org

Helicopter impulsive noise: theoretical and experimental statusThe theoretical and experimental status of helicopter impulsive noise is reviewed....

PDF: hdl.handle.net

Narrowband interference suppression via nonlinear estimationThe problem of narrowband interference suppression in impulsive noise environments is considered in this paper....

PDF: citeseerx.ist.psu.edu

impulse noise

sciences naturelles et appliquées - iate.europa.eu

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Effect of impulse noise during pregnancy on birth weight of ratsThe aim of this study was to investigate the effect of impulse noise on birth weight of pregnant rats....

général - core.ac.uk - PDF: doaj.org

Smoothing of impulse noise by orthogonal transformElectromagnetic impulse noise which is harmful to signal measurement or transmission of information, is smoothed by the orthogonal transform processor....

PDF: core.ac.uk

A fuzzy impulse noise detection and reduction method,” image processingAbstract — Removing or reducing impulse noise is a very active research area in image processing....

PDF: citeseerx.ist.psu.edu

Coded 64-cap adsl in an impulse-noise environments - modeling of impulse noise and first simulation resultsThis paper presents the performance of various coding schemes for the asymmetrical digital subscriber line (ADSL) in an impulse-noise environment....

PDF: citeseerx.ist.psu.edu

Robust multi-user detection based on hybrid grey wolf optimization... In this paper, a novel hybrid Grey wolf optimization and differential evolution algorithm robust multi-user detection algorithm is proposed to overcome the problem of high bit error rate (BER) in multi-user detection under impulse noise environment....

PDF: umpir.ump.edu.my

impulsive sound

sciences naturelles et appliquées - iate.europa.eu

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The effects of high intensity impulsive sound on young european sea bass dicentrarchus labrax, with special attention to pile driving... More specifically, the acute and delayed mortality, acute and chronic bphysiological stress responses and the impact of lower intensity impulsive sound on the fish behaviour were assessed through field and laboratory experiments....

général - core.ac.uk - PDF: core.ac.uk

A comprehensive study to assess the impact of impulsive sound on juvenile sea bass... This study tackles the impact of impulsive sound, related to pile-driving activities for offshore wind energy development, on the mortality, stress and behaviour of post-larval and juvenile European sea bass ...

PDF: biblio.ugent.be

Prediction of low frequency and impulsive sound radiation from horizontal axis wind turbinesTheoretical models to predict the radiation of low frequency and impulsive sound from horizontal axis wind turbines due to three sources: (1) steady blade loads; (2) unsteady blade loads due to operation in a ground shear; (3) unsteady loads...

PDF: hdl.handle.net

Numerical computation of the impulsive sound generated by a projectile discharging from a muzzleAbstract [338] The goal of this paper is to suggest the numerical method for the simulation of impulsive sound generation and to investigate the acoustic field produced by a projectile discharging from a muzzle....

PDF: aancl.snu.ac.kr

Robust impulsive sound source localization by means of an energy detector for temporal alignment andIn this paper, we present a novel approach for detection and localization of both impulsive and non-impulsive sound sources....

PDF: citeseerx.ist.psu.edu

impulse sound

sciences naturelles et appliquées - iate.europa.eu

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Attenuation of earmuffs used simultaneously with safety spectacles in exposure to impulse noise... The tests also demonstrated that the effect of prescription glasses on sound attenuation was unusually high; prescription glasses reduced the impulse sound attenuation of earmuffs by as much as 18 dB.Keywords:...

général - core.ac.uk - PDF: doaj.org

Sound propagation from a semi-open shooting range... When a weapon is fired, the impulse sound from the muzzle blast reflects against the side-walls and screens and creates a complex sound field, which depends on the weapon/ammunition used and the firing position...

PDF: www.loc.gov

Meteorological effects on long-range outdoor sound propagationMeasurements of sound propagation over distances up to 1000 m were carried out with an impulse sound source offering reproducible, short time signals....

PDF: hdl.handle.net

1 investigation on noise radiation characteristics of two- phase multi-cycle pulse detonation engine... The impulse sound pressure level increases with the increasing of operating frequency, equivalence ratio and fill fraction....

PDF: enu.kz

Analytical expression for sound transmission loss calculation: an improvement to the existing method after singh and katraAn analytical expression for measuring of sound transmission loss (TL) has been developed by using two microphones, an impedance tube and an impulse sound source as a proposed improvement to the existing procedure after Singh and Katra (1978)....

PDF: doaj.org

impact noise

sciences naturelles et appliquées - iate.europa.eu

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Active structural acoustic control of impact noiseIndustrial machines like punching machines and presses can generate structure-borne impact noise, with noise levels exceeding the tresholds, imposed by legal regulations on noise emission....

général - core.ac.uk - PDF: citeseerx.ist.psu.edu

Objective and subjective evaluation of floor impact noiseFloor impact noise has been evaluated by investigating the temporal and spectral characteristics of the noise....

PDF: citeseerx.ist.psu.edu

Numerical simulation of impact noise generated at the railway insulated jointThis paper presents a full finite element (FE) model of wheel-track interaction to study the wheel-rail impact noise excited by an insulated joint (IJ)....

PDF: www.loc.gov

Active structural acoustic control of repetitive impact noiseThis paper discusses the effectiveness of an Active Structural Acoustic Control (ASAC) system for the reduction of impact noise, radiated by structures with a high modal density in the controlled frequency range....

PDF: citeseerx.ist.psu.edu

Perception and reaction to floor impact noise in apartment buildings: a qualitative approachThis study used grounded theory to understand how apartment building residents perceive and react to floor impact noise from upstairs....

PDF: core.ac.uk