Zobrazeno 1 - 10 of 78 pro vyhledávání: '"Satèl·lits artificials en navegació"'
1
A multi‐frequency method to improve the long‐term estimation of GNSS clock corrections and phase biases
Autor: Rovira‐Garcia, A., Juan, J. M., Sanz, J., González‐Casado, G., Ventura‐Traveset, J., Cacciapuoti, L., Schoenemann, E.
Publikováno v: NAVIGATION, Journal of the Institute of Navigation
UPCommons. Portal del coneixement obert de la UPC
Universitat Politècnica de Catalunya (UPC)
The space segment of the Global Navigation Satellite System (GNSS) is equipped with highly stable atomic clocks. In order to use these clocks as references, their time offsets must be estimated from ground measurements as accurately as possible. This
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a4d021ea500bb0037b4b5286edd8acc0
https://doi.org/10.1002/navi.453
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2
Navegació i maniobres aèries molt acurades amb GNSS
Autor: Fuertes i Buisac, Oriol
El projecte descrit en aquest document es centra en el posicionament de precisió a partir de les mesures de fase dels senyals provinents dels satel·lits GNSS (Global Navigation Satellite System). A partir d’un receptor NEO-7P es busquen tecniques
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=od______3484::23b84d83e2508ccb7b108d9e02723da1
https://hdl.handle.net/2117/377398
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3
Network‐based ionospheric gradient monitoring to support GBAS
Autor: José Miguel Juan, Maria Caamano, Daniel Gerbeth, Michael Felux, Guillermo González-Casado, Jaume Sanz
Publikováno v: UPCommons. Portal del coneixement obert de la UPC
Universitat Politècnica de Catalunya (UPC)
Ionospheric anomalies, like large ionospheric gradients, might produce a difference between the ionospheric error experienced by the Ground Based Augmentation System (GBAS) reference station and the aircraft on approach. This ionospheric delay differ
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6a95f1a7f8c777e9b99e5aa807044339
https://doi.org/10.1002/navi.411
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4
Airborne Ionospheric Gradient Monitoring for Dual-Frequency GBAS
Autor: Gerbeth, Daniel, Caamano, Maria, Circiu, Mihaela-Simona, Felux, Michael
Certified 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 and/or large abnormal ionosp
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e4bb4481db5c7308b2694a1084204e81
https://elib.dlr.de/148745/
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5
Ionospheric corrections tailored to the Galileo High Accuracy Service
Autor: Guillermo González-Casado, D. Blonski, Cristhian Camilo Timoté, Jesús Juan, Adria Rovira-Garcia, Raul Orus-Perez, Jaume Sanz, I. Fernández-Hernández
Publikováno v: Journal of Geodesy
UPCommons. Portal del coneixement obert de la UPC
Universitat Politècnica de Catalunya (UPC)
The Galileo High Accuracy Service (HAS) is a new capability of the European Global Navigation Satellite System that is currently under development. The Galileo HAS will start providing satellite orbit and clock corrections (i.e. non-dispersive effect
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a3bc59c00023c2a564098e48fdefe56b
https://hdl.handle.net/2117/357177
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6
Digital gap reduction in rural isolated areas through wideband communications over low Earth orbit satellite constellations
Autor: Revoltos I Barberà, Joan
Publikováno v: UPCommons. Portal del coneixement obert de la UPC
Universitat Politècnica de Catalunya (UPC)
There is an international consensus about considering internet access as a need, as a right that humanity needs to ensure to achieve a homogeneous development around the world, without differences. However, even in the most developed countries, the i
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::0017f815e954e3b36096e816b9175af1
https://hdl.handle.net/2117/349458
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7
Two-dimensional mineral dust radiative effect calculations from CALIPSO observations over Europe
Autor: M. J. Granados-Muñoz, M. Sicard, N. Papagiannopoulos, R. Barragán, J. A. Bravo-Aranda, D. Nicolae
Publikováno v: Atmospheric Chemistry and Physics, Vol 19, Pp 13157-13173 (2019)
UPCommons. Portal del coneixement obert de la UPC
Universitat Politècnica de Catalunya (UPC)
Atmospheric chemistry and physics
19 (2019): 13157–13173. doi:10.5194/acp-19-13157-2019
info:cnr-pdr/source/autori:Jose Granados-Munoz, Maria; Sicard, Michael; Papagiannopoulos, Nikolaos; Barragan, Ruben; Antonio Bravo-Aranda, Juan; Nicolae, Doina/titolo:Two-dimensional mineral dust radiative effect calculations from CALIPSO observations over Europe/doi:10.5194%2Facp-19-13157-2019/rivista:Atmospheric chemistry and physics (Print)/anno:2019/pagina_da:13157/pagina_a:13173/intervallo_pagine:13157–13173/volume:19
Digibug. Repositorio Institucional de la Universidad de Granada
instname
Recercat. Dipósit de la Recerca de Catalunya
A demonstration study to examine the feasibility of retrieving dust radiative effects based on combined satellite data from MODIS (Moderate Resolution Imaging Spectroradiometer), CERES (Clouds and the Earth’s Radiant Energy System) and CALIOP (Clou
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::87aed96ff031a71bcdcbc3d5758b593c
https://www.atmos-chem-phys.net/19/13157/2019/acp-19-13157-2019.pdf
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8
Development of extension modules for the Distributed Satellite Systems Simulator
Autor: Villalonga Gomà, Antoni Ramon
Publikováno v: UPCommons. Portal del coneixement obert de la UPC
Universitat Politècnica de Catalunya (UPC)
Esta tesis presenta el diseño e implementación de la Visual Configuration Tool, y una sección de testing que describe la validación y el proceso de verificación deeste módulo de extensión del DSS-Sim.
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::f13c572c3889ec3802adf213ac754661
https://hdl.handle.net/2117/352118
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9
Removing day-boundary discontinuities on GNSS clock estimates: methodology and results
Autor: Jaume Sanz, Javier Ventura-Traveset, José Miguel Juan, Adria Rovira-Garcia, Guillermo González-Casado, Luigi Cacciapuoti, Erik Schoenemann
Publikováno v: GPS Solutions
UPCommons. Portal del coneixement obert de la UPC
Universitat Politècnica de Catalunya (UPC)
Global navigation satellite system (GNSS) satellites are equipped with very stable atomic clocks that can be used for assess-ing the models and strategies involved in the estimation processes, where the clock estimates should present high stability.
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6061f90e89503d89a2de2ce05881b9ac
https://hdl.handle.net/2117/335589
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10
Influence of temporal resolution on the performance of global ionospheric maps
Autor: A Goss, Qi Liu, Manuel Hernández-Pajares, Haixia Lyu
Publikováno v: UPCommons. Portal del coneixement obert de la UPC
Universitat Politècnica de Catalunya (UPC)
Digital.CSIC. Repositorio Institucional del CSIC
instname
Global ionosphere maps (GIM) computed from dual-frequency GNSS measurements have been widely used for monitoring ionosphere as well as providing ionospheric corrections in Space Geodesy since 1998. This work focuses on a comprehensive study of the in
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a69c0d21547dc5c5313f53686be4b122
https://hdl.handle.net/2117/360562
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