Ara es mostren els items 1-20 de 274

  • 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)
    Text en actes de congrés
    Accés obert
    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)
    Comunicació de congrés
    Accés obert
  • 3Cat-1: Attitude determination and control subsystem design 

    Vidal Mateu, David (Universitat Politècnica de Catalunya, 2013-12-10)
    Treball Final de Grau
    Accés obert
    [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-1 project: a multi-payload CubeSat for scientific experiments and technology demonstrators 

    Jové Casulleras, Roger; Araguz López, Carles; Via Ortega, Pol; Solanellas Bofarull, Arnau; Amezaga Sarries, Adria; Vidal Mateu, David; Muñoz Martin, Joan Francesc; Marí Barceló, Marc; Olivé Muñiz, Roger; Sáez Hernández, Alberto; Jané Abad, Jaume; Bou Balust, Elisenda; Iannazzo Soteras, Mario Enrique; Gorreta Mariné, Sergio; Ortega Villasclaras, Pablo Rafael; Pons Nin, Joan; Domínguez Pumar, Manuel; Alarcón Cot, Eduardo José; Ramos Castro, Juan José; Camps Carmona, Adriano José (2017)
    Article
    Accés obert
    This article introduces 3 Cat-1, the first project of the Technical University of Catalonia to build and launch a nano-satellite. Its main scope is to develop, construct, assemble, test and launch into a low Earth orbit a ...
  • 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)
    Text en actes de congrés
    Accés restringit per política de l'editorial
    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 ...
  • (3)CAT-2: attitude determination and control system for a GNSS-R earth observation 6U CubeSat mission 

    Cortiella, Alexandre; Vidal Mateu, David; Jané Abad, Jaume; Juan, Enric; Olivé, Roger; Amezaga Sarries, Adria; Francesc Muñoz, Joan; Carreño Luengo, Hugo; Camps Carmona, Adriano José (2016)
    Article
    Accés obert
    This work describes the attitude determination and control system ( ADCS) of 3 CAT-2, a six-unit CubeSat scheduled for launch this 2016. The ADCS of 3CAT-2 aims at controlling the satellite in orbit and fulfilling the ...
  • 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)
    Projecte/Treball Final de Carrera
    Accés obert
    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 ...
  • A comparison study on meta-heuristics for ground station scheduling problem 

    Xhafa Xhafa, Fatos; Herrero, Xavier; Barolli, Admir; Takizawa, Makoto (Institute of Electrical and Electronics Engineers (IEEE), 2014)
    Text en actes de congrés
    Accés obert
    In ground station scheduling problem the aim is to compute an optimal planning of communications between Spacecrafts (SCs) and operations teams of Ground Stations (GSs). While such allocation of tasks to ground stations ...
  • 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)
    Text en actes de congrés
    Accés restringit per política de l'editorial
    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 ...
  • A CubeSAT payload for in-situ monitoring of pentacene degradation due to atomic oxygen etching in LEO 

    Gorreta Mariné, Sergio; Pons Nin, Joan; López Rodríguez, Gema; Figueras, Eduard; Jové Casulleras, Roger; Araguz López, Carles; Via Ortega, Pol; Camps Carmona, Adriano José; Domínguez Pumar, Manuel (2016-09-01)
    Article
    Accés obert
    This paper reports and discusses the design and ground tests of a CubeSat payload which allows to measure, in-situ and in real time, the degradation of a polymer of electronic interest due to atomic oxygen etching in LEO. ...
  • Adaptive beamforming with temporal and spatial references in satellite communications 

    Fernández Rubio, Juan Antonio (1990)
    Text en actes de congrés
    Accés obert
  • 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)
    Projecte/Treball Final de Carrera
    Accés obert
    [ANGLÈS] Compensation of the distorsions introduced to the optical wavefronts by the atmosphere using the algorithm APHEFIS, developed by Dr. Dirk Giggenbach.
  • A downscaling approach for SMOS land observations: evaluation of high-resolution soil moisture maps over the Iberian Peninsula 

    Piles Guillem, Maria; Sanchez, Nilda; Vall-Llossera Ferran, Mercedes Magdalena; Camps Carmona, Adriano José; Martinez Fernandez, Jose; Martinez, Justino; González Gambau, Veronica (2014-09-01)
    Article
    Accés restringit per política de l'editorial
    The ESA's Soil Moisture and Ocean Salinity (SMOS) mission is the first satellite devoted to measure the Earth's surface soil moisture. It has a spatial resolution of similar to 40 km and a 3-day revisit. In this paper, a ...
  • Advanced interference mitigation techniques for the forward link of multi-beam broadband satellite systems 

    Devillers, Bertrand; Pérez Neira, Ana Isabel (2011)
    Text en actes de congrés
    Accés restringit per política de l'editorial
    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, Pol; Pérez Neira, Ana Isabel; Mazzali, N.; Mosquera Nartallo, Carlos (Institute of Electrical and Electronics Engineers (IEEE), 2016)
    Text en actes de congrés
    Accés restringit per política de l'editorial
    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 ...
  • 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)
    Comunicació de congrés
    Accés restringit per política de l'editorial
    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 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
    Accés obert
    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 Ground Station software framework and telemetry management system for Nano-satellite missions 

    Ballesteros Sánchez, Christian (Universitat Politècnica de Catalunya, 2016-06)
    Treball Final de Grau
    60 months embargo
  • A methodology to assess ionospheric models for GNSS 

    Rovira Garcia, Adrià; Juan Zornoza, José Miguel; Sanz Subirana, Jaume; González Casado, Guillermo; Ibáñez Segura, Deimos (2015)
    Comunicació de congrés
    Accés restringit per política de l'editorial
  • A multi-agent adaptive protocol for femto-satellite applications 

    González Rufián, Raquel; Naudó Vallverdú, Juan (Universitat Politècnica de Catalunya, 2011-07-15)
    Treball Final de Grau
    Accés obert
    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 ...