Now showing items 1-20 of 26

  • 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)
    Conference report
    Open Access
    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 ...
  • An adaptive remeshing procedure for proximity maneuvering spacecraft formations 

    García Taberner, Laura; Masdemont Soler, Josep (2012)
    Article
    Open Access
    We consider a methodology to optimally obtain reconfigurations of spacecraft formations. It is based on the discretization of the time interval in subintervals (called the mesh) and the obtainment of local solutions on ...
  • CO2-cushion vehicle for Mars. An alternative locomotion for exploration rovers 

    Arias Montenegro, Francisco Javier (American Institute of Aeronautics and Astronautics (AIAA), 2018)
    Conference report
    Restricted access - publisher's policy
    In this work, consideration is given to ad hoc cushion vehicles for Mars. On Earth, air cushion vehicles use pressurized atmospheric air by means of powerful blowers that pump the air into a chamber, however, for Mars -at ...
  • Cohetes y nostalgia 

    Barceló Garcia, Miquel (2015-07)
    Article
    Open Access
  • Confinement of spacecraft swarms in J2-perturbed orbits about the earth 

    García-Taberner, Laura; Masdemont Soler, Josep (2014)
    Conference report
    Open Access
    There have been studies of the reliability of a swarm [3], based on nano-satellites, that give a study for the num- ber of satellites that can be working as a period of time, with good results for a 5-10 anys time ...
  • 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 ...
  • Control remoto 

    Barceló Garcia, Miquel (2015-01)
    Article
    Open Access
  • El Ascensor espacial 

    Edwards, Bradley C. (Edicions UPC, 2010)
    Book
    Restricted access to UB, UAB, UPC, UPF, UdG, UdL, URV, UOC, BC, UVic, UJI, URL, UIC users
    Cincuenta años después de que el Sputnik sobrevolara la Tierra a menos de 1.000 km de altitud, circunstancia que despertó dosis similares de recelo y admiración, la exploración espacial sigue sustentándose en cohetes que ...
  • Evaluation of struggle strategy in genetic algorithms for ground stations scheduling problem 

    Xhafa Xhafa, Fatos; Herrero, Xavier; Barolli, Admir; Barolli, Leonard; Takizawa, Makoto (2012-02-12)
    Article
    Open Access
    Ground station scheduling problem arises in spacecraft operations and aims to allocate ground stations to spacecraft to make possible the communication between operations teams and spacecraft systems. The problem belongs ...
  • Ground Stations Scheduling with Genetic Algorithm 

    Sun, Junzi (Universitat Politècnica de Catalunya, 2009-07-02)
    Master thesis
    Restricted access - author's decision
    TThis work presents a Genetic Algorithm (GA) approach to Ground Station (GS) and Spacecraft (SC) Scheduling problem, which is based on the space missions and ground stations from ESA (European Space Agency). Genetic ...
  • Magnetic Mars dust removal technology: a dustblasting technique for Mars 

    Arias Montenegro, Francisco Javier (2018-01)
    Article
    Restricted access - publisher's policy
    It is known that the Martian atmosphere contains a large amount of suspended dust. The saltation process, or gravitational settlement of atmospheric dust, onto the surface of solar arrays can affect the utility of solar ...
  • Mission Analysis for Google Lunar X-Prize Participants: Options for going to the Moon 

    Maitre -, Boris (Universitat Politècnica de Catalunya, 2010-07-15)
    Master thesis
    Open Access
  • Negro como el carbón 

    Barceló Garcia, Miquel (2015-03)
    Article
    Open Access
  • On the rotational Cucker-Smale model: optimal formation configuration and adaptive gains design 

    Paita, Fabrizio; Gómez Muntané, Gerard; Masdemont Soler, Josep (2015)
    Conference report
    Restricted access - publisher's policy
    In the present paper we consider the attitude synchronization problem for a formation of spacecraft flying in free space. In particular, we consider the same control laws of [1] and we expand on the results presented there. ...
  • Project on the design of an inertial measurement unit to be used in aerospace vehicles 

    Casamor Martinell, Oriol (Universitat Politècnica de Catalunya, 2015-06)
    Bachelor thesis
    Open Access
    Aiming to obtain aerospace vehicle ight parameters and engine characteristics, a DCM and magnetometer fusion algorithm is introduced in addition to a Kalman lter, in order to estimate position, velocity and acceleration ...
  • Redes radioeléctricas basadas en aeronaves estratosféricas : el ejemplo Helinet 

    Delgado Penin, José Antonio; Bertran Albertí, Eduardo (Escola Tècnica Superior d'Enginyers de Telecomunicació de Barcelona, 2000)
    Article
    Open Access
  • Resolució de "Ground-Station Scheduling" amb mètodes heurístics 

    Herrero Javaloy, Josep Xavier (Universitat Politècnica de Catalunya, 2012-06-20)
    Master thesis (pre-Bologna period)
    Open Access
  • Sondas robóticas 

    Barceló Garcia, Miquel (2002-10)
    Article
    Open Access
  • Spherical Rover for lunar and planetary exploration 

    Gutiérrez Cabello, Jordi; Tristancho Martínez, Joshua (2013)
    Conference report
    Open Access
    Historically, planetary and lunar rovers have been wheeled-driven. While this is usually seen as an advantage –due to the flight experience– in some cases, the unavoidable presence of gears and mobile parts can be a ...
  • Study of feasibility of a mission to Mars using aerocapture technique 

    Belart Bayo, Oscar (Universitat Politècnica de Catalunya, 2012-07)
    Master thesis (pre-Bologna period)
    Open Access
    Aerocapture is a brand new technique of orbit insertion, which consists in the energy depletion of a spacecraft using atmospheric drag. This decelerates the space vehicle and changes its trajectory from hyperbolic orbit ...