Browsing by Contributor "Gutiérrez Cabello, Jordi"

Now showing items 1-20 of 68

    • 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 ...

    • A comparison of star identification algorithms for star trackers 

      Jurado Aguilera, Sara (Universitat Politècnica de Catalunya, 2024-10-29)
      Bachelor thesis
      Open Access
      Star trackers are the most accurate attitude-determination systems for satellites. Its operation is based on the identification of the stars present in the field of view of a small telescope and the determination of the ...

    • A preliminary study of Lunar astronomical observatories 

      Schwarze Fernández, Johann (Universitat Politècnica de Catalunya, 2023-10-31)
      Bachelor thesis
      Open Access
      The idea of Lunar-based observatories has been gaining popularity among the scientific community during the last decades. Placing a telescope on the Moon surface not only would overcome all of the current shortcomings of ...

    • 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 ...

    • Aerodynamics measurements in a wind tunnel 

      Fernandez Lopez, Naiara; Morales Pastor, Jesus (Universitat Politècnica de Catalunya, 2019)
      Coursework
      Open Access

    • An analysis of the thermospheric drag upon 3U CubeSats 

      Martínez Calzado, Adrián (Universitat Politècnica de Catalunya, 2023-07-13)
      Master thesis
      Open Access
      Accurate drag modelling is crucial for satellite operations and re-entries in low-Earth orbit (LEO). A proper treatment of this problem becomes increasingly important as the number of artificial satellites grows. However, ...

    • An experimental investigation of the effect of fractal grids on the near and full field structure of a turbulent round jet 

      Plançon, Eric (Universitat Politècnica de Catalunya, 2016-04-07)
      Bachelor thesis
      Restricted access - author's decision
      This project involves the experimental analysis of a jet with different nozzle configurations. The first configuration being a classic round nozzle and the second is modified adding a "fractal grid" by modifying the flow ...

    • Analysis and selection of a MEMS, multi-constellation GNSS receiver for a femtosatellite 

      Guerra Mentruit, Alejandro (Universitat Politècnica de Catalunya, 2020-02-14)
      Bachelor thesis
      Open Access
      Context: The expansion of space applications and their liberalization is an actual fact since the last decade. Small satellites are developed either by academic institutions and private companies. The concept of femtosatelites, ...

    • Analysis of 3D gravity assists 

      Martínez Torrebadella, Alexis (Universitat Politècnica de Catalunya, 2021-07-13)
      Master thesis
      Restricted access - author's decision

    • Analysis of extremely metal-poor stars abundances 

      Rivero Sosa, Nathaniel (Universitat Politècnica de Catalunya, 2023-07-25)
      Master thesis
      Restricted access - confidentiality agreement
      Context: Understanding the origin of the oldest stars in the universe is crucial to shed light on its early chemical evolution and on the formation history of the Milky Way. The oldest stars were either the direct heirs ...

    • 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 ...

    • Attitude Determination using Quaternion-based Algorithms for 3Cat-4 

      Navarro Trastoy, Ángel (Universitat Politècnica de Catalunya, 2020-07-20)
      Master thesis
      Open Access
      The determination of a spacecraft’s orientation is a major problem for every mission; payloads require specific characteristics to work and engines must aim the opposite direction to were the spacecraft is meant to move. ...

    • Automation of the determination of Inertia Tensors of CubeSats using torsion pendulum period measurements 

      Gutierrez Ibarra, Jon (Universitat Politècnica de Catalunya, 2020-09-07)
      Bachelor thesis
      Open Access
      Contexto: Los CubeSats constituyen el estándar de satélites pequeños más extendido, prácticamente desde que fueron presentados a finales de la década de 1990. Los CubeSats revolucionaron la industria espacial. Gracias a ...

    • Bus d'un microstaèl·lit en òrbita de la Terra 

      Borràs i Garallo, Jordi (Universitat Politècnica de Catalunya, 2006-12-20)
      Master thesis (pre-Bologna period)
      Open Access
      En aquest treball es pretén realitzar el disseny basic, o disseny de fase A, d’un microsatèl•lit per a una missió en orbita al voltant de la Terra. L’objectiu d’aquesta missió es mesurar els efectes de la radiació ionitzant ...

    • Campaign of aerodynamic measurements in a wind tunnel 

      Domingo, C.; Fortuny, J.; Orriols, G.; Gallegos, J.M. (Universitat Politècnica de Catalunya, 2017)
      Coursework
      Open Access

    • 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 ...

    • Certification of new ATM regulations for ATR aircraft 

      Okina Mondragon, Ander (Universitat Politècnica de Catalunya, 2016-07-13)
      Bachelor thesis
      Restricted access - confidentiality agreement
      Covenantee:   ATR Aircraft

    • Characterization and Improvement of Thrust Balance Measurement Technique for SX3 Applied-Field Magnetoplasmadynamic Thruster 

      Mankar, Akash (Universitat Politècnica de Catalunya, 2019-06-04)
      Master thesis
      Open Access
      Covenantee:   Universität Stuttgart. Institut für Raumfahrtsysteme
      Steady state applied-field magnetoplasmadynamic thruster promises good compromise between thrust density and specific impulse, making them relevant for interplanetary missions requiring high thrusts. The IRS 100 kW gas-fed ...

    • Comparative study of attitude determination algorithms 

      Furiati Aguilar, José Ricardo (Universitat Politècnica de Catalunya, 2024-09-13)
      Bachelor thesis
      Open Access
      In the late years, missions performed by CubeSats have become very popular in both the academic and commercial world, the ambition and complex requirements of these missions have increased, and so the accuracy of attitude ...