Now showing items 1-20 of 161

    • 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 ...
    • 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 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 ...
    • 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 and mitigation of the reconstruction error in interferometric radiometry 

      Díez García, Raul (Universitat Politècnica de Catalunya, 2014-12-05)
      Master thesis (pre-Bologna period)
      Open Access
      [ANGLÈS] The European Space Agency (ESA) Soil Moisture and Ocean Salinity mission (SMOS) provides continuous global maps of soil moisture and ocean surface salinity. Its payload MIRAS (Microwave Imaging Radiometer with ...
    • 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 ...
    • AOCS of a nanosatellite type CubeSat 1U based on reaction wheels 

      Skiba Maldonado, Victoria (Universitat Politècnica de Catalunya, 2020-07-14)
      Bachelor thesis
      Open Access
      Covenantee:   European Space Astronomy Centre
      The European Agency is currently developing a 3U CubeSat, aimed to transmit to Earth well-defined reference signals which will be used to calibrate ground-based Cosmic microwave background (CMB) polarimeters. In order to ...
    • 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 ...
    • 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 ...
    • Classification of multi-source satellite images for large scale land cover mapping 

      Juan, Enric (Universitat Politècnica de Catalunya, 2018-01)
      Master thesis
      Open Access
      Covenantee:   Centre d’Etudes Spatial de la Biosphere
      Satellite remote sensing imagery represents an attractive data source to monitor large regions with frequent updates. In this context, the operational production of accurate land cover maps plays an important role in ...
    • 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 ...
    • Containment methods for atmospheric re-entry of satellites 

      Eggen, Njord (Universitat Politècnica de Catalunya, 2019-06-27)
      Master thesis
      Restricted access - author's decision
      To palliate the hazards posed by satellites re-entering the atmosphere, international guidelines have defined a maximum acceptable risk for objects to re-enter uncontrolled. Containment methods attempt to reduce this ...
    • Daphne: an Intelligent Cognitive Assistant for the design of Earth observing satellites 

      Prat i Sala, Arnau (Universitat Politècnica de Catalunya, 2017-09-25)
      Master thesis
      Open Access
      Covenantee:   Cornell University
      This thesis introduces Daphne, an Intelligent Cognitive Assistant (ICA) designed to help engineers architect Earth observing satellite systems. The purpose of this thesis is threefold: 1) develop the interfaces through ...