Now showing items 1-20 of 124

  • 20/30 GHz front-end for the TMS-7 receiving station of the OLYMPUS satellite 

    Artal, E; Bará, J; Berenguer Sau, Jordi; Comerón Tejero, Adolfo; Corbella Sanahuja, Ignasi; Pradell i Cara, Lluís (1989)
    Conference report
    Open Access
    The authors present the 20/30-GHz front-end of the TMS-7 station for performing the measurement of the flux density of one or more signal carriers received from the OLYMPUS satellite. The front-end is composed of two ...
  • 3Cat-1: a multi-payload Cubesat-based scientific and technology demonstrator 

    Jové Casulleras, Roger; Camps Carmona, Adriano José; Ramos Castro, Juan José; Alarcón Cot, Eduardo José; Bou Balust, Elisenda; Carreño Luengo, Hugo; Amézaga Sarries, Adrià; Olivé Muñiz, Roger; Vidal Mateu, David; Muñoz Martin, Joan Francesc; Araguz López, Carles; Marí Barceló, Marc; Ortega Villasclaras, Pablo Rafael; Pons Nin, Joan; Gorreta Mariné, Sergio; Domínguez Pumar, Manuel; Iannazzo Soteras, Mario Enrique (European Spatial Agengy (ESA), 2014)
    Conference lecture
    Open Access
  • 3Cat-1: Attitude determination and control subsystem design 

    Vidal Mateu, David (Universitat Politècnica de Catalunya, 2013-12-10)
    Bachelor thesis
    Open Access
    [ANGLÈS] This project is focused on the design and implementation of an attitude control system for the satellite 3Cat-1. Using a passive system cwith permanent magnets and an active system, consisting of a coil as actuator.
  • 3CAT-3/MOTS, an experimental nanosatellite for multispectra and GNSS-R Earth Observation: Mission concept and analysis 

    Castellví Esturi, Jordi; Camps Carmona, Adriano José; Corbera Fauria, Jordi; Alamús, Ramón (Institute of Electrical and Electronics Engineers (IEEE), 2017)
    Conference report
    Restricted access - publisher's policy
    The 3 Cat-3/MOTS mission is a joint initiative between the Institut Cartogràfic i Geològic de Catalunya (ICGC) and the Universitat Politècnica de Catalunya-BarcelonaTech (UPC) to foster new and innovative technologies on ...
  • A case study on the communications subsystem for cubesat 

    Cebrián Herrera, Natalia (Universitat Politècnica de Catalunya, 2014-06-09)
    Master thesis (pre-Bologna period)
    Open Access
    Covenantee:  Universidade de Fortaleza
    Due to the overwhelming increment transmission and reception of information around the world, Satellite Communications have become an essential application in our lives. Proof of this, are the continuous investments made ...
  • A Cross-layer architecture for DVB-S2 Broadband Satellite systems with QoS support 

    Rendón Morales, Elizabeth; Mata Diaz, Jorge; Muñoz Tapia, José Luis (Institute of Electrical and Electronics Engineers (IEEE), 2013)
    Conference report
    Restricted access - publisher's policy
    In this paper we propose an architecture to provide Quality of Service (QoS) guarantees for DVB-S2 broadband satellite systems. The proposed architecture provides low complexity on its implementation and can seamlessly ...
  • Adaptive optics without wave-front sensor using the APHEFIS (Adaptive Optics by Phase Estimation from Focal Intensity Speckles) algorithm 

    Muñoz Fuentes, Manuel (Universitat Politècnica de Catalunya, 2012-07-19)
    Master thesis (pre-Bologna period)
    Open Access
    [ANGLÈS] Compensation of the distorsions introduced to the optical wavefronts by the atmosphere using the algorithm APHEFIS, developed by Dr. Dirk Giggenbach.
  • Advanced interference mitigation techniques for the forward link of multi-beam broadband satellite systems 

    Devillers, Bertrand; Pérez Neira, Ana Isabel (2011)
    Conference report
    Restricted access - publisher's policy
    High throughput satellite systems are expected to rely in the user link on multi-beam architectures with small beam footprints and strong frequency reuse among beams, and will therefore operate in an interference limited ...
  • Advanced signal processing techniques for fixed and mobile satellite communications 

    Henarejos Hernández, Pol; Pérez Neira, Ana Isabel; Mazzali, N.; Mosquera Nartallo, Carlos (Institute of Electrical and Electronics Engineers (IEEE), 2016)
    Conference report
    Restricted access - publisher's policy
    Enabling ultra fast systems has been widely investigated during recent decades. Although polarization has been deployed from the beginning in satellite communications, nowadays it is being exploited to increase the throughput ...
  • A Ground Station software framework and telemetry management system for Nano-satellite missions 

    Ballesteros Sánchez, Christian (Universitat Politècnica de Catalunya, 2016-06)
    Bachelor thesis
    60 months embargo
  • Alternativas para una “canalización subóptima” del espectro radioeléctrico permitido al satélite de telecomunicaciones europeo ECS 

    Agustí Comes, Ramon; Delgado Penin, José Antonio (1979)
    Conference report
    Open Access
  • A multi-agent adaptive protocol for femto-satellite applications 

    González Rufián, Raquel; Naudó Vallverdú, Juan (Universitat Politècnica de Catalunya, 2011-07-15)
    Bachelor thesis
    Open Access
    Femto-satellites are a very promising category of satellites that weigh less than 100 grams. Also, a Pico-Rover it is a self-contained robot that weighs less than 1 kilogram and its motion works by rolling the external ...
  • A multi-agent payload management approach for femtosatellite applications 

    Navarro Morales, Lara (Universitat Politècnica de Catalunya, 2011-09-21)
    Master thesis
    Open Access
    The reduction in size of electronic components makes feasible really small satellites like Femtosatellites with are less than 100 grams of mass. The main advantage of this kind of satellite is the multipoint of view when ...
  • Análisis y caracterización del rizado "scalloping" en imágenes radar scansar y topsar 

    López Bustamante, Jordi (Universitat Politècnica de Catalunya, 2011-03-25)
    Master thesis (pre-Bologna period)
    120 months embargo
    Català: En els últims anys el nombre de missions que utilitzen radars de tipus SAR està augmentant considerablement degut a les bones prestacions que ofereixen en front de les possibles condicions climatològiques adverses. ...
  • Analysis of perturbations and station-keeping requirements in highly-inclined geosynchronous orbits 

    Fantino, Elena; Flores Le Roux, Roberto Maurice; Di Salvo, Alessio; Di Carlo, Marilena (2015)
    Conference report
    Open Access
    There is a demand for communications services at high latitudes that is not well served by conventional geostationary satellites. Alternatives using low-altitude orbits require too large constellations. Other options are ...
  • An Android real-time kernel and system interface for open nano-satellite constellations 

    Marí Barceló, Marc (Universitat Politècnica de Catalunya, 2016-06)
    Bachelor thesis
    Open Access
    L'objectiu d'aquest treball és dissenyar i implementar part de l'arquitectura de software per a una plataforma de desenvolupament de nano-satèl·lits oberta basada en Android. Per un costat, afegir temps real al kernel. Per ...
  • A new design of high precision solar microsensor for satellite aplications 

    Delgado, Francisco; Ortega Villasclaras, Pablo Rafael; Lopez Tarrida, Cristina; Garcia Ortega, Juan; Angulo, Manuel; Quero Reboul, Jose Manuel (IEEE, 2010)
    Conference report
    Restricted access - publisher's policy
    This paper shows the design and calibration of an improved miniaturized two-axis sun sensor for satellite attitude control. The proposed new structure is based on a previous sun sensor structure by adding multiple sensing ...
  • An IBC solar cell for the UPC CubeSat-1 mission 

    Ortega Villasclaras, Pablo Rafael; Jové Casulleras, Roger; Pedret, A; Gonzalvez, G.; López Rodríguez, Gema; Martín García, Isidro; Domínguez Pumar, Manuel; Alcubilla González, Ramón; Camps Carmona, Adriano José (Institute of Electrical and Electronics Engineers (IEEE), 2013)
    Conference report
    Restricted access - publisher's policy
    In this work the fabrication and electrical characterization of interdigitated back contact IBC solar cells is shown. These solar cells have been specifically designed for a CubeSat based satellite under developement at ...
  • An innovative interference mitigation approach for high throughput satellite systems 

    Caus, Marius; Pérez Neira, Ana Isabel; Angelone, Martina; Ginesi, Alberto (Institute of Electrical and Electronics Engineers (IEEE), 2013)
    Conference report
    Restricted access - publisher's policy
    This paper investigates how to boost the forward link capacity in multibeam satellite systems. Since co-channel interference is the main inhibitor to achieve the full potential of frequency reuse, we propose to mitigate ...
  • Architectural Model for Evaluating Space Communication Networks 

    Sánchez Net, Marc (Universitat Politècnica de Catalunya / Massachusetts Institute of Technology, 2012-12)
    Master thesis (pre-Bologna period)
    Open Access
    Covenantee:  Massachusetts Institute of Technology
    [ANGLÈS] The space exploration endeavor started in 1957 with the launch and operation of the first manmade satellite, the URSS Sputnik 1. Since then, multiple space programs have been developed, pushing the limits of ...