Exploració per tema "Làsers"
Ara es mostren els items 1-20 de 173
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3D car detection with LIDAR
(Universitat Politècnica de Catalunya, 2019-06)
Treball Final de Grau
Accés obert
Realitzat a/amb: Ficosa ElectronicsEn esta tesis se propone entrenar una red neuronal para la detección de coches, utilizando sólo puntos de un LIDAR de 32 canales de la base de datos de NuScenes. El objetivo es conseguir el reconocimiento de coches frontales ... -
El 50 aniversari del Làser: fites aconseguides en ciència i tecnologia, i perspectives de futur
(2010-05-07)
Audiovisual
Accés obertUn làser és un dispositiu que utilitza l'emissió estimulada o induïda per generar un feix de llum. Però què ha fet fins ara i quin és el seu futur? -
A 461 nm laser system for an ultracold strontium quantum gas experiment
(Universitat Politècnica de Catalunya, 2021-09-09)
Projecte Final de Màster Oficial
Accés obert
Realitzat a/amb: Institut de Ciències Fotòniques (ICFO)In recent years, ultra-cold atomic gases have emerged as a novel platform for the study of quantum many-body systems. Exploiting these gases, it is possible to synthesize quantum matter of highly controllable properties ... -
Activitats del grup de recerca Dinàmica No lineal, Òptica no lineal i Làsers
(Campus de Terrassa de la UPC, 2013-06-13)
Text en actes de congrés
Accés obert -
Adaptive Filter Solution For Processing Lidar Returns: Optical Parameter Estimation
(OPTICAL SOC AMER, 1998-01-31)
Article
Accés obertJoint estimation of extinction and backscatter simulated profiles from elastic-backscatter lidar return signals is tackled by means of an extended Kalman filter (EKF). First, we introduced the issue from a theoretical point ... -
Analysis of beam wander effects for a horizontal-path propagating Gaussian-beam wave: focused beam case
(SPIE-INT SOCIETY OPTICAL ENGINEERING, 2007-08-31)
Article
Accés obertFailure of the first-order Rytov approximation to properly predict the scintillation index of a large-aperture focused beam, or an uplink collimated (or focused) beam, has been discussed in several recent publications, ... -
Análisis de la rugosidad de una superficie utilizando speckle
(Universitat Politècnica de Catalunya, 2016-06-03)
Treball Final de Grau
Accés obertLa rugosidad de la superficie del papel es un parámetro sumamente importante en la fabricación del papel. La medida de rugosidad de la superficie es uno de los problemas centrales en la industria del papel. Actualmente, ... -
Aplicación de la espectroscopia Raman a mezclas de pigmentos vía temperatura
(Universitat Politècnica de Catalunya, 2016-01-29)
Projecte/Treball Final de Carrera
Accés obertIn this research, Raman spectroscopy was applied in order to study the temperature induced by a laser on a material. Firstly, the mathematical profile of a Raman spectrum was described, which is a useful procedure to ... -
Arduino based laser control
(Universitat Politècnica de Catalunya, 2015-01)
Treball Final de Grau
Accés obert[ANGLÈS] Diode laser for communications control based on an Arduino board. Temperature control implementation. Software and hardware protection for the laser implementation. -
Area and laser power scalability analysis in photonic networks-on-chip
(Institute of Electrical and Electronics Engineers (IEEE), 2013)
Comunicació de congrés
Accés restringit per política de l'editorialIn the last decade, the field of microprocessor architecture has seen the rise of multicore processors, which consist of the interconnection of a set of independent processing units or cores in the same chip. As the number ... -
Assimilation of lidar signals: application to aerosol forecasting in the western Mediterranean basin
(2014-11-17)
Article
Accés obertThis paper presents a new application of assimilating lidar signals to aerosol forecasting. It aims at investigating the impact of a ground-based lidar network on the analysis and short-term forecasts of aerosols through ... -
Auscultación de la erosión en un terraplén experimental mediante la tecnología escáner láser terrestre
(Universitat Politècnica de Catalunya, 2019-07)
Projecte Final de Màster Oficial
Accés obertLa erosión y perdida de suelo es un fenómeno con consecuencias importantes. En este trabajo se estudia la erosión en un terraplén experimental mediante la aplicación de tecnología escáner láser terrestre (TLS). Se realizará ... -
Automatic compensation of polarisation drifts in an optical fibre
(Universitat Politècnica de Catalunya, 2020-06)
Treball Final de Grau
Accés obertIn days where Science Fiction uses the word ?Quantum? to justify any weird phenomena, we are actually on the edge of the Second Quantum Revolution. The ability to harness the potential of the quantum state of single particles ... -
Automatic manhole extraction from MMS data to update basemaps
(2020)
Article
Accés obertBasemaps are the main resource used in urban planning, building and infrastructure asset management. Therefore, they must be accurate and up to date to better serve citizens, contractors, property owners and town planning ... -
Automatización de medidas de potencia de un láser
(Universitat Politècnica de Catalunya, 2018-10)
Treball Final de Grau
Accés obertThis project is about the automation of power measurements of a laser to have control at all times of its status and operation. -
Avalanche of stimulated forward scattering in high harmonic generation
(2016-04-05)
Article
Accés obertOptical amplifiers in all ranges of the electromagnetic spectrum exhibit an essential characteristic, namely the input signal during the propagation in the amplifier medium is multiplied by the avalanche effect of the ... -
Beam focalization in reflection from flat dielectric subwavelength gratings
(2014-10-15)
Article
Accés restringit per política de l'editorialWe experimentally demonstrate the recently predicted effect of near-field focusing for light beams from flat dielectric subwavelength gratings (SWGs). This SWGs were designed for visible light 532 nm and fabricated by ... -
Brightness enhancement in Non-Hermintian VCSELs
(Optical Society of American (OSA), 2019)
Text en actes de congrés
Accés restringit per política de l'editorialVertical Cavity Surface Emitting lasers (VCSELs) are compact and efficient light sources useful for a variety of applications. However, due to lack of a transverse mode control mechanism, such lasers suffer from poor spatial ... -
Calibration of Raman lidar water vapor mixing ratio measurements using zenithal measurements of diffuse sunlight and a radiative transfer model
(Institute of Electrical and Electronics Engineers (IEEE), 2018-07-20)
Article
Accés obertAmong the different techniques available for measuring the atmospheric water vapor content, Raman lidars stand out as accurate instruments providing detailed profiles with high temporal and altitude resolution. Their ... -
Caracterización de diodos láser tipo Distributed Feedback
(Universitat Politècnica de Catalunya, 2011-06-30)
Treball Final de Grau
Accés obert