Now showing items 1-20 of 334

  • 3CAT-2: a 6U CibeSat-based multi-constellation, dual-polarization, and dual-frequency GNSS-RO experimental mission 

    Carreño Luengo, Hugo; Amézaga Sarries, Adrià; Bolet, Albert; Vidal Mateu, David; Jané, Jaume; Muñoz Martin, Joan Francesc; Olivé Muñiz, Roger; Camps Carmona, Adriano José; Carola, Jorge; Catarino, Nuno; Hagenfeldt, Miguel; Palomo, Pedro; Cornara, Stefania (2015)
    Conference report
    Restricted access - publisher's policy
    Cat-2 Assembly, Integration and Verification (AIV) activities of the Engineering Model (EM) and the Flight Model (FM) are being carried out at present. The Attitude Determination and Control System (ADCS) and Flight ...
  • 3CAT-2, an experimental nano-satellite for GNSS-R earth observation: mission concept and analysis 

    Carreno-Luengo, Hugo; Camps Carmona, Adriano José; Muñoz, Joan Francesc; Vidal, David; Amézaga Sarries, Adrià; Bolet Alberto, Font; Jané, Jaume; Olivé, Roger; Carola, Jorge; Catarino, Nuno; Hagenfeldt, Miguel; Palomo, Pedro; Cornara, Stefania (2016-10-01)
    Article
    Open Access
    Global navigation satellite system reflectometry is a multistatic radar using navigation signals as signals of opportunity. It provides wide-swath and improved spatiotemporal sampling over current space-borne missions. The ...
  • 3Cat-3/MOTS nanosatellite mission for optical multispectral and GNSS-R Earth Observation: concept and analysis 

    Castellví Esturi, Jordi; Camps Carmona, Adriano José; Corbera Fauria, Jordi; Alamús, Ramón (Multidisciplinary Digital Publishing Institute (MDPI), 2018-01-06)
    Article
    Open Access
    The 3Cat-3/MOTS (3: Cube, Cat: Catalunya, 3: 3rd CubeSat mission/Missió Observació Terra Satèl·lit) mission is a joint initiative between the Institut Cartogràfic i Geològic de Catalunya (ICGC) and the Universitat Politècnica ...
  • 3D FEM model of ground deformation in Deception Island (Antarctica) 

    Garrido Ballart, Sònia (Universitat Politècnica de Catalunya, 2017-06-16)
    Master thesis
    Open Access
    Covenantee:  Institut de Ciències de la Terra Jaume Almera
    Ground deformation has been demonstrated to be one of the most common signals of volcanic unrest. A variety of processes can cause ground deformation in active volcanic areas (e.g. magmatic processes, pore pressure ...
  • AATR an ionospheric activity indicator specifically based on GNSS measurements 

    Juan Zornoza, José Miguel; Sanz Subirana, Jaume; Rovira Garcia, Adrià; González Casado, Guillermo; Ibáñez Segura, Deimos; Orús Pérez, Raul (2018-03-01)
    Article
    Open Access
    This work reviews an ionospheric activity indicator useful for identifying disturbed periods affecting the performance of Global Navigation Satellite System (GNSS). This index is based in the Along Arc TEC Rate (AATR) and ...
  • Accesibilidad en interiores mediante Unity y Google Maps 

    Garcia Galvez, Brian (Universitat Politècnica de Catalunya, 2015-02-05)
    Bachelor thesis
    Restricted access - author's decision
    Imagine being in a foreign airport where you do not know the language or, even worst, you do not know the alphabet. You open the application, the locator introduces your ticket and when you get all the relevant information, ...
  • Acceso a aplicaciones desde dispositivos móviles mediante servicios Web en función del posicionamiento geográfico 

    Cuadrado Sánchez, Rubén; López Nuevo, David Andrés (Universitat Politècnica de Catalunya, 2008-06-24)
    Master thesis (pre-Bologna period)
    Open Access
    La idea principal de este proyecto es ofrecer servicios a los alumnos de la universidad UPC. Los alumnos accederán a estos servicios a través de una aplicación para dispositivos móviles. La UPC está formada por diversos ...
  • Accuracy of ionospheric models used in GNSS and SBAS: methodology and analysis 

    Rovira Garcia, Adrià; Juan Zornoza, José Miguel; Sanz Subirana, Jaume; González Casado, Guillermo; Ibáñez Segura, Deimos (2016-03-01)
    Article
    Restricted access - confidentiality agreement
    © 2015, Springer-Verlag Berlin Heidelberg. The characterization of the accuracy of ionospheric models currently used in global navigation satellite systems (GNSSs) is a long-standing issue. The characterization remains a ...
  • A context-aware model to provide positioning in disaster relief scenarios 

    Moreno, Daniel; Ochoa, Sergio; Meseguer Pallarès, Roc (2015-10-01)
    Article
    Open Access
    The effectiveness of the work performed during disaster relief efforts is highly dependent on the coordination of activities conducted by the first responders deployed in the affected area. Such coordination, in turn, ...
  • A direct method to estimate atmospheric phase delay for insar with global atmospheric models 

    Hu, Zhongbo; Mallorquí Franquet, Jordi Joan (Institute of Electrical and Electronics Engineers (IEEE), 2018)
    Conference lecture
    Restricted access - publisher's policy
    Differential Interferometric Synthetic Aperture Radar (DInSAR) has proved its unprecedented advantages of monitoring ground deformation on large scale with centimeter to millimeter precision in the last two decades. However, ...
  • Advanced methods of integration of GNSS and 3D models for positioning in deep urban canyons 

    Ortega González, Héctor (Universitat Politècnica de Catalunya, 2017-10)
    Bachelor thesis
    Open Access
    Classical GNSS positioning in urban environments presents a variety of problems such as satellite signal blockage, reflection and fading, mainly caused by buildings. These issues reduce the number of available satellites, ...
  • Advances in the MIR instrument: integration, control subsystem and analysis of the flight dynamics for beamsteering purposes 

    Onrubia Ibáñez, Raúl; Garrucho, Lidia; Pascual Biosca, Daniel; Hyuk, Park; Querol Borràs, Jorge; Alonso Arroyo, Alberto; Camps Carmona, Adriano José (2015)
    Conference lecture
    Restricted access - publisher's policy
    The MIR (Microwave Interferometric Reflectometer) is a new dual frequency Global Navigation Satellite Systems Re- flectometry (GNSS-R) instrument that implements conventional and interferometric reflectometry, both with ...
  • A field study on satellite and cellular 

    Gete-Alonso Roldan, Oscar; Martín Escalona, Israel; Barceló Arroyo, Francisco (IEEE Press. Institute of Electrical and Electronics Engineers, 2010)
    Conference report
    Restricted access - publisher's policy
    This article presents a statistical study on the availability of location sources. In particular, it rates the availability of cellular network base stations and GPS satellites in urban scenarios. Individual and joint ...
  • A generic level 1 simulator for spaceborne GNSS-R missions and application to GEROS-ISS ocean reflectometry 

    Hyuk, Park; Camps Carmona, Adriano José; Pascual Biosca, Daniel; Kang, Yujin; Onrubia Ibáñez, Raúl; Querol Borràs, Jorge; Alonso Arroyo, Alberto (2017-07-18)
    Article
    Open Access
    In the past decade Global Navigation Satellites System Reflectometry (GNSS-R) has emerged as a new technique for earth remote sensing for various applications, such as ocean altimetry and sea state monitoring. After the ...
  • A generic simulator for aperture synthesis radiometers: Radiative transfer module and end-to-end tests 

    Camps Carmona, Adriano José; Hyuk, Park; Barbosa, José; Bandeiras, J.; Sousa, Ana; d'Addio, Salvatore; Martín Neira, Manuel (Institute of Electrical and Electronics Engineers (IEEE), 2014)
    Conference lecture
    Restricted access - publisher's policy
    The Synthetic Aperture Interferometric Radiometer (SAIR) Performance Simulator (SAIRPS) is a very versatile software tool developed by Deimos Engenharia (Portugal) and the Universitat Politècnica de Catalunya-Barcelona ...
  • Airborne GNSS-R wind retrievals using delay-doppler maps 

    Rodriguez Alvarez, N.; Akos, D.M.; Zavorotny, Valery U.; Smith, Jeffrey; Camps Carmona, Adriano José; Fairall, C.W. (Institute of Electrical and Electronics Engineers (IEEE), 2013-01)
    Article
    Restricted access - publisher's policy
    Global 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 wind retrieval using GPS delay-Doppler maps 

    Zavorotny, Valery; Rodríguez, Nereida; Akos, D.M.; Camps Carmona, Adriano José (Institute of Electrical and Electronics Engineers (IEEE), 2012)
    Conference report
    Restricted access - publisher's policy
    Global 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 ...
  • Ajust de models de geoide a la comarca de L'Alt Empordà 

    Barneda Suñer, Enric (Universitat Politècnica de Catalunya, 2012-04-18)
    Master thesis (pre-Bologna period)
    Restricted access - author's decision
    L’objectiu del projecte consisteix en la comparativa entre diferents models de geoide que comprenen la zona de l’Alt Empordà i el posterior ajust per tal de mostrar quin és el que millor s’adapta a la zona i conèixer la ...
  • Altimetry with GNSS-R interferometry: first proof of concept experiment 

    Martín Neira, Manuel; Altena, B.; van Bree, R.; Van Der Marel, H.; Camps Carmona, Adriano José; Rius, Antonio; Nogués Correig, O.; Ribó Vedrilla, Serni; Cardellach, Estel; Oliveras, S.; Valencia Domènech, Enric; Hyuk, Park; Tarongí Bauzá, José Miguel (2012-04)
    Article
    Restricted access - publisher's policy
    The Global Navigation Satellite System Reflectometry (GNSS-R) concept was conceived as a means to densify radar altimeter measurements of the sea surface. Until now, the GNSS-R concept relied on open access to GNSS ...
  • A method for scintillation characterization using geodetic receivers operating at 1 Hz 

    Juan Zornoza, José Miguel; Aragón Ángel, Maria Angeles; Sanz Subirana, Jaume; González Casado, Guillermo; Rovira Garcia, Adrià (2017-05-08)
    Article
    Open Access
    Ionospheric scintillation produces strong disruptive effects on global navigation satellite system (GNSS) signals, ranging from degrading performances to rendering these signals useless for accurate navigation. The current ...