Browsing by Subject "Artificial satellites"

Now showing items 1-20 of 148

    • 3 cat-4 attitude control system 

      Martínez Zúñiga, Julio (Universitat Politècnica de Catalunya, 2018-07-09)
      Master thesis
      Restricted access - author's decision
      The goal of this Master Thesis (MT) is the development and simulation of detumbling algorithms for the Attitude Determination and Control System (ADCS) of the 3Cat-4 nanosatellite. The difficulty of the ADCS will be given ...

    • 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; Amézaga Sarries, Adrià; 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
      Open Access
      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-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 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 swarm of femtosatellites for lower thermospheric density determination. 

      Lledó Ardila, Carlos (Universitat Politècnica de Catalunya, 2015-07-30)
      Master thesis
      Open Access
      The Lower thermosphere (between 80 and 350 km) is quite badly known due to the scarcity of satellites in this region. Nevertheless, it is an important region in several respects. Firstly, because its density determines ...

    • A system to determine the inertia tensor of small satellites 

      Gabarró Olsina, Marc (Universitat Politècnica de Catalunya, 2019-07-24)
      Bachelor thesis
      Open Access
      Context: Attitude control of a satellite relies upon a precise determination of its inertia tensor. However, the determination of the inertia tensor of a complex system, as is the case of satellites, completely escapes ...

    • A Tabu Search algorithm for ground station scheduling problem 

      Xhafa Xhafa, Fatos; Herrero Garcia, Xavier; Barolli, Admir; Takizawa, Makoto (2014)
      Conference report
      Open Access
      Mission planning plays an important role in satellite control systems. Satellites are not autonomously operated in many cases but are controlled by tele-commands transmitted from ground stations. Therefore, mission scheduling ...

    • ALTAIR: Design of a new European spaceport 

      Miralles Roure, Pablo (Universitat Politècnica de Catalunya, 2017-01-12)
      Bachelor thesis
      Restricted access - confidentiality agreement

    • Analysis and design of an interferometer for geostationary synthetic aperture radars orbit determination 

      Grimaldo Sánchez, Germán Angel (Universitat Politècnica de Catalunya, 2015-07)
      Master thesis (pre-Bologna period)
      Open Access
      The industry of remote sensing has nowadays strongly developed systems, which are versatile and adaptable, however they are not optimal for certain applications. With more than enough reason from it, a new technology of ...

    • Analysis of jet transport-based geostationary trajectory uncertainty propagation 

      Chen, Jianlin; Masdemont Soler, Josep; Gerard, Gómez; Jianping, Yuan (2020-03-31)
      Article
      Open Access

    • Anàlisi de viabilitat d'un satèl·lit en òrbita LEO 

      Benzal Santamaria, Luis Alberto; Velasco Carcaboso, Vanessa (Universitat Politècnica de Catalunya, 2010-01-20)
      Bachelor thesis
      Open Access
      The present work analyses the requirements related to the orbit and the effects of the space radiation on Polosat, a toy-model satellite whose main goal is to monitor and image the Earth Poles. Our main objective has ...

    • Applying autonomy to distributed satellite systems: Trends, challenges, and future prospects 

      Araguz López, Carles; Bou Balust, Elisenda; Alarcón Cot, Eduardo José (2018-03-26)
      Article
      Open Access
      While monolithic satellite missions still pose significant advantages in terms of accuracy and operations, novel distributed architectures are promising improved flexibility, responsiveness, and adaptability to structural ...

    • Assessing LoRa for satellite-to-Earth communications considering the impact of Ionospheric Scintillation 

      Fernandez Capon, Lara Pilar; Ruiz De Azúa Ortega, Juan Adrián; Calveras Augé, Anna M.; Camps Carmona, Adriano José (Institute of Electrical and Electronics Engineers (IEEE), 2020-09-07)
      Article
      Open Access
      Since the appearance of 5G, Internet of Things (IoT) has gained an increased interest, with multiple technologies emerging and converging to cover different user needs. One of the biggest challenges today is to have global ...

    • Bounded gain-scheduled LQR satellite control using a tilted wheel 

      Martin Estraña, Veronica (Universitat Politècnica de Catalunya, 2017-05-05)
      Bachelor thesis
      Open Access
      Covenantee:   École polytechnique de Montréal
      From the beginning of the satellite usage, the momentum created by its movements has been a concern that has to be taken into account for every space mission. Depending on the dimensions, ...

    • Caracteritzation of noise in MEMS accelerometres for femtosats 

      Liebana Moradillo, Oscar (Universitat Politècnica de Catalunya, 2018-07-27)
      Bachelor thesis
      Open Access
      Covenantee:   NanoSat Lab
      The aim of this thesis is to determine the characteristics of the noise of an ultralow noise MEMS accelerometer. The study of these characteristics will allow to determine if the accelerometer can be used in the scientific ...

    • ³Cat-3 3-axes ADCS using reaction wheels and magnetorquers 

      Mollà Garcia, Armand (Universitat Politècnica de Catalunya, 2016-06-27)
      Bachelor thesis
      Open Access
      Este TFG está basado en la experiencia ganada en la determinación de actitud y sistemas de control del 3Cat-2. Sistemas basados en los magnetorquers y TFGs previos del control de un eje y un sistema de 3 ejes de reaction ...

    • Co-channel interference cancellation at the user terminal in multibeam satellite systems 

      Cocco, Giuseppe; Angelone, Martina; Pérez Neira, Ana Isabel (Institute of Electrical and Electronics Engineers (IEEE), 2014)
      Conference report
      Open Access
      We study the applicability of soft interference cancellation in the forward link of commercial multibeam satellite systems with focus on mobile terminals. We adopt a standard currently used in commercial satellite systems ...

    • Communication link design at 437.5 MHz for a nanosatellite 

      Cantero Gómez, Jorge (Universitat Politècnica de Catalunya / Aalto-yliopisto, 2013-09-02)
      Master thesis (pre-Bologna period)
      Open Access
      Covenantee:   Aalto-yliopisto. Sähkötekniikan korkeakoulu
      [ANGLÈS] The goal of this work was to design communication solution for the nanosatellite Aalto-2 which is an educational oriented CubeSat project started in 2012 by Aalto University, Finland. The main objective of the ...

    • Comparativa de sensores espaciales de diferente resolución espectral en la exploración minera 

      Lora López, Jose Carlos (Universitat Politècnica de Catalunya, 2016-07)
      Master thesis
      Open Access
      El reconocimiento de minerales en la superficie terrestre se lleva a cabo desde hace años con imágenes captadas desde satélites artificiales (LANDSAT, SPOT, EO-1, TERRA, etc.). La resolución espectral de los sensores a ...

    • Control en modo deslizante aplicado a sistemas de acondicionamiento de potencia de satélites 

      Calvente Calvo, Francisco Javier (Universitat Politècnica de Catalunya, 2001-12-14)
      Doctoral thesis
      Open Access
      El sistema de acondicionamiento de potencia es clave para el funcionamiento correcto del resto de sistemas eléctricos de un satélite. Los reguladores conmutados continua - continua son las piezas que enlazan los paneles ...