Exploració per títol
Ara es mostren els items 11446-11465 de 245486
-
Airborne Collision Avoidance System (ACAS)
(Universitat Politècnica de Catalunya, 2016-10)
Apunts
Accés obert -
Airborne GNSS-R wind retrievals using delay-doppler maps
(Institute of Electrical and Electronics Engineers (IEEE), 2013-01)
Article
Accés restringit per política de l'editorialGlobal navigation satellite system (GNSS) reflectometry has emerged recently as a promising remote sensing tool to retrieve various geophysical parameters of the Earth's surface. GNSS-reflected signals, after being received ... -
Airborne GNSS-R, thermal and optical data relationships for soil moisture retrievals
(Institute of Electrical and Electronics Engineers (IEEE), 2015)
Comunicació de congrés
Accés restringit per política de l'editorialNew remote sensing techniques based on the analysis of the Earth's surface-reflected signal from the Global Navigation Satellite Systems (GNSS-Reflectometry, or GNSS-R in short) are emerging. Soil moisture and vegetation ... -
Airborne GNSS-R: A key enabling technology for environmental monitoring
(Institute of Electrical and Electronics Engineers (IEEE), 2021)
Article
Accés obertWeather forecast using GNSS-R relies, to a large extent, on data acquired by airborne and spaceborne platforms due to the extended coverage that can be achieved. GEO satellites can retrieve measurements over large areas ... -
Airborne ionospheric gradient monitoring for dual-frequency GBAS
(Curran Associates, Inc., 2022)
Text en actes de congrés
Accés obertCertified Ground Based Augmentation Systems (GBAS) as of today operate using only GPS signals in the L1 frequency band to enable precision approach guidance for landing aircraft. Ionospheric activity (i.e., scintillations ... -
Airborne pollen parameters and their relationship with meteorological variables in NE Iberian Peninsula
(2018-05-23)
Article
Accés obertThe present study explores the role of the meteorological variability in the pollen production and the timing of the airborne pollen season by analysis of the correlation between precipitation, insolation and temperature ... -
Airborne spray drift measurement using passive collectors and lidar Systems
(2009)
Comunicació de congrés
Accés restringit per política de l'editorialMinimization of the risk associated with spray applications requires a proper understanding of the spray drift phenomenon. This fact has led to the development of several techniques to measure the deposition on horizontal ... -
Airborne wind retrieval using GPS delay-Doppler maps
(Institute of Electrical and Electronics Engineers (IEEE), 2012)
Text en actes de congrés
Accés restringit per política de l'editorialGlobal Navigation Satellite System Reflectometry (GNSSR) has emerged recently as a promising remote sensing tool to retrieve various geophysical parameters of Earth’s surface. GNSS-reflected signals, after being received ... -
Aircraft annoyance minimization around urban airports based on fuzzy logic
(GERAD; École Polytechnique de Montréal; Cadi Ayyad University, 2007-05)
Text en actes de congrés
Accés obertThis paper presents a strategy based on fuzzy logic and lexicographic multi-objective optimization for designing noise abatement procedures aimed at reducing the noise exposure of the population living around the airports. ... -
Aircraft cabin layout check - Development of a tool for the adaptation of aircraft loading in case of shear exceedances
(Universitat Politècnica de Catalunya, 2024-02-15)
Treball Final de Grau
Accés restringit per acord de confidencialitatAirbus currently offers a wide range of cabin configurations, fuel tanks and cargo compartments for each of its aircraft models. All these configuration differences must be subjected to an amount of studies to ensure the ... -
Aircraft Charging and its Influence on Triggered Lightning
(2020-01-16)
Article
Accés obertThis paper reports on a laboratory experiment to study the effect of vehicle net charge on theinception of a positive leader from an aircraft exposed to high atmospheric electric fields. The experimentmodels the first stage ... -
Aircraft clouds: from chemtrail pseudoscience to the science of contrails
(2018-04-03)
Article
Accés obertThe most frequent statements and arguments found in pseudoscience websites and forums supporting the existence of so-called aircraft chemtrails can be refuted with a scientific explanation of the processes resulting in the ... -
Aircraft conflict detection using data mining and statistical tools
(Universitat Politècnica de Catalunya, 2016-10-28)
Treball Final de Grau
Accés obertNowadays and taking into account the different indicators and the forecast of the air traffic volume from Eurocontrol, it is accepted the idea that the traffic will be doubled by 2030, that is why it is so important ... -
Aircraft dynamic loads generated in wake vortex encounters
(Universitat Politècnica de Catalunya, 2014-06-12)
Projecte Final de Màster Oficial
Accés obert
Realitzat a/amb: Airbus Defence and SpaceThe study illustrated in these pages was developed in the Structural Dynamics and Aeroelasticity Department of the Military Aircraft division of Airbus Defence and Space in Getafe, Madrid (Spain). That department is a ... -
Aircraft localization using a passive acoustic method. Experimental test
(2016-01)
Article
Accés obertA passive acoustic method for aircraft localization is experimentally tested in this paper. The method relies on the Doppler effect influencing the signals received by a mesh of microphones distributed over the acoustic ... -
Aircraft noise-monitoring according to ISO 20906: evaluation of uncertainty derived from the human factors affecting event detection
(2012)
Article
Accés restringit per política de l'editorialOne of the most important issues in aircraft noise monitoring systems is the correct detection and marking of aircraft sound events through their measurement profiles, as this influences the reported results. In the recent ... -
Aircraft performance certification - Electronic flight bag software
(Universitat Politècnica de Catalunya, 2017-09-07)
Treball Final de Grau
Accés restringit per decisió de l'autor
Realitzat a/amb: ATR Aircraft / École Nationale de l'Aviation CivileThe continuous improvement of Electronic Flight Bag Software tools used in ATR for performance and weight & balance computations has made the EASA-OEB recommendation published in 2013 to become outdated. In view of this ... -
Aircraft propulsion systems: study and simulation of a turbofan
(Universitat Politècnica de Catalunya, 2015-06)
Treball Final de Grau
Accés obert
Realitzat a/amb: Hochschule Aalen -
Aircraft Radiation Modeling for Interference Calculation between On-board and Ground Cellular Systems
(Universitat Politècnica de Catalunya, 2006-07)
Projecte/Treball Final de Carrera
Accés restringit per decisió de l'autorThis thesis aims at defining and validating a theoretical model, that approaches the aircraft radiation pattern, whereby the interference power radated by the aircraft UMTS picocell to ground systems can be determined.What ... -
Aircraft tracking by means of the Acoustical Doppler Effect
(2013-07)
Article
Accés restringit per política de l'editorialThe present paper presents a passive acoustic method for aircraft tracking. The Acoustical Doppler Effect, characteristic of signals received by a mesh of spatially distributed microphones is the basis of the method. A ...