Exploració per tema "Noise"
Ara es mostren els items 1-20 de 86
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A general analysis of error in noise measurement systems
(Institute of Electrical and Electronics Engineers (IEEE), 1988)
Text en actes de congrés
Accés obertGeneral and approximated expressions are presented which allow the identification and quantification of errors in noise figure measurements that use the Y-factor method. This formulation is a generalization of that in /2/ ... -
A new mathematical profile for experimental Raman spectra of historical mineral pigments
(Universitat Politècnica de Catalunya, 2020-07)
Treball Final de Grau
Accés obertThis final degree project (GFR) is based on the use of Raman spectroscopy as a method of characterizing pigments of mineral origin and especially those used in art. One of the fundamental objectives has been to find precise ... -
Active noise cancellation
(Universitat Politècnica de Catalunya, 2017-06)
Treball Final de Grau
Accés obertDonats els recents progressos en Cancel·lació Activa de Soroll (CAS) per a Avions [11], Cascos de música [10], Telèfons [8], etc. vaig decidir desenvolupar un sistema de cancel·lació activa de soroll per espais menys ... -
Advanced techniques for grau area mitigation in DES simulations and their effectes on the subsonic round jet acoustic spectra
(2021)
Text en actes de congrés
Accés restringit per política de l'editorialThe research dedicated to the investigation of different gray-area mitigation approaches towards accurate aerodynamics and aeroacoustics is presented. The recent modifications of hybrid RANS-LES DDES approach based on ... -
Analysis of denoising algorithms for Polarimetric SAR data: the cases of the Bilateral and the Non Local Means filters
(Universitat Politècnica de Catalunya, 2014-09-12)
Projecte/Treball Final de Carrera
Accés obert
Realitzat a/amb: Technische Universität Berlin[ANGLÈS] The aim of this thesis is to do an in-depth analysis of state-of-the-art denoising methods for Polarimetric SAR data and to propose a new algorithm taking advantage on their strong points. The filters under analysis ... -
Analysis of noise distributions at heliports and vertiports: a guide for site selection and land use planning
(Omnia Science, 2023-12)
Article
Accés obertPurpose: The purpose of this study was to examine the noise profiles of helicopters and eVTOLs at heliports and vertiports in order to support site planning and the development of local land-use compatibility guidelines. ... -
Analysis of noise-induced temporal correlations in neuronal spike sequences
(2016-11-01)
Article
Accés obertWe investigate temporal correlations in sequences of noise-induced neuronal spikes, using a symbolic method of time-series analysis. We focus on the sequence of time-intervals between consecutive spikes (inter-spike-intervals, ... -
Analysis of the Path Tracing rendering method on CPU and GPU
(Universitat Politècnica de Catalunya, 2020-04-23)
Treball Final de Grau
Accés obertFa molts anys que es realitza recerca al camp de la renderització realista. Tenim diversos mètodes capaços d'aconseguir imatges amb un gran grau de realisme, com pot ser Ray Tracing, Path Tracing, Photon Mapping o Metropolis ... -
Analysis, evaluation, and comparison of polarimetric SAR speckle filtering techniques
(2014-04)
Article
Accés restringit per política de l'editorialSpeckle noise filtering on polarimetric SAR (PolSAR) images remains a challenging task due to the difficulty to reduce a scatterer-dependent noise while preserving the polarimetric information and the spatial information. ... -
Anàlisis de l'impacte acústic de vies de transport a Montcada i Reixac i proposta de mesures mitigadores
(Universitat Politècnica de Catalunya, 2021-06-02)
Projecte Final de Màster Oficial
Accés obertMontcada i Reixac és un municipi de la comarca del Vallés Occidental on conflueixen diverses vies de trànsit rodat i ferroviari per la seva proximitat a la capital barcelonina. Aquest projecte estudia l'afectació sonora ... -
Análisis y optimización acústica de recintos cerrados
(Universitat Politècnica de Catalunya, 2022-07-05)
Treball Final de Grau
Accés restringit per acord de confidencialitat -
Application of the method of decomposition of lidar signal-to-noise ratio to the assessment of laser instruments for gaseous pollution detection
(2004-07)
Article
Accés obertA general methodology for rating both performance and potential of lidar systems used for detection of atmospheric trace constituents including pollutants and gas leaks is developed. By individually examining and ... -
Assessment of environmental noise and its effect on neonates in a Neonatal Intensive Care Unit
(2016-10-01)
Article
Accés obertA method for analyzing the influence of noise on newborns is proposed. The method consists of defining three different types of time interval (quiet, noisy and nursing) and, for each period, environmental noise levels, ... -
Bilateral distance based filtering for polarimetric SAR data
(2013-10-30)
Article
Accés obertThis paper introduces a non-linear Polarimetric SAR data filtering approach able to preserve the edges and small details of the data. It is based on exploiting the data locality in both, the spatial and the polarimetric ... -
Calidad acústica de nuestras aulas ¿dificultades de audición?
(2021-05)
Article
Accés obertLa calidad acústica del ambiente en que se realiza el aprendizaje puede ser determinante a la hora de obtener mejores resultados. Así pretende demostrarlo un estudio realizado en la Facultad de Óptica y Optometría de ... -
Characterisation of an AMR-based magnetic sensor for the LISA mission
(Universitat Politècnica de Catalunya, 2022-10-25)
Treball Final de Grau
Accés obert
Realitzat a/amb: Institut d'Estudis Espacials de CatalunyaThis document contains the final thesis (TFG) where an HMC-1002 AMR magnetic sensor is characterized to meet the requirements for the LISA space mission to be carried out in 2034. It first explains the LISA mission along ... -
Characterization of laplacian surface electromyographic signals during isometric contraction in biceps brachii
(Institute of Electrical and Electronics Engineers (IEEE), 2013)
Text en actes de congrés
Accés restringit per política de l'editorialSurface electromyography (sEMG) is a noninvasive technique for monitoring the electrical activity produced by the muscles. Usually, sEMG is performed by carrying out monopolar or bipolar recordings by means of conventional ... -
Coherence and anticoherence resonance tuned by noise
(American Physical Society, 2002-10-24)
Article
Accés obertWe present numerical evidence and a theoretical analysis of the appearance of anticoherence resonance induced by noise, not predicted in former analysis of coherence resonance. We have found that this phenomenon occurs for ... -
Collective stochastic coherence and synchronizability in weighted scale-free networks
(2014-01-21)
Article
Accés obertCoupling frequently enhances noise-induced coherence and synchronization in interacting nonlinear systems, but it does so separately. In principle collective stochastic coherence and synchronizability are incompatible ... -
Comments on and extensions of wolf's signal-to-channel noise formulas for delta-modulated systems
(1980-01)
Article
Accés obert