Browsing by Contributor "Gil Pons, Pilar"

Now showing items 1-20 of 28

    • 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 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 ...

    • 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, ...

    • 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 ...

    • 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 ...

    • 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 ...

    • 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 ...

    • Design and construction of a picosatellite’s primary structure by using 3D printing technologies 

      Nicolás Álvarez, Jorge (Universitat Politècnica de Catalunya, 2016-07-28)
      Bachelor thesis
      Open Access
      The viability of developing the design and manufacture of the structure of a small satellite CubeSat, at the School of Telecommunications and Aerospace Engineering of Castelldefels( EETAC), at the Polytechnical University ...

    • Design of a femto-satellite for high-altitude thermospheric studies 

      Moschtaq, Mohammad Raschiq (Universitat Politècnica de Catalunya, 2021-02-12)
      Master thesis
      Open Access
      This work deals with the design of a femto-satellite for scientific studies. The goal of the femto-satellite is to model the density of the thermosphere by measuring the orbital decay caused by atmospheric drag. The proposed ...

    • Design of a planetary aerobot 

      Boix Candil, Álvaro (Universitat Politècnica de Catalunya, 2018-07-30)
      Bachelor thesis
      Open Access
      The main objective of this project is to design an aerial vehicle which can contribute in planetary research in a more optima l way than the current missions. It has been decided that an aerobot, which consists in a balloon ...

    • Design of a quaternion based ADCS for a small space telescope 

      Martín Millán, Nil (Universitat Politècnica de Catalunya, 2018-07-30)
      Bachelor thesis
      Open Access
      This project focuses on the study previous to the development of an Attitude Determination and Control System (ADCS) of a small space telescope, the Humble Space Telescope (hST). The ADCS is essential for the telescope ...

    • Determination of drag coefficients in a free molecular flow 

      Minguell Montes, Bernat (Universitat Politècnica de Catalunya, 2018-07-20)
      Bachelor thesis
      Open Access
      This project aims to study the drag coefficient (CD) for satellites in a free molecular flow. The study is mainly based on Schaaf & Chambre and Schamberg models. These are old models (from 1958), but still are the most ...

    • Determination of the along-orbit average density of the thermospere 

      Martínez Calzado, Adrián (Universitat Politècnica de Catalunya, 2020-09-14)
      Bachelor thesis
      Open Access
      Nowadays, the study of the dynamics of the upper atmosphere has become a must in order to study satellite trajectories at low orbit with accuracy. The region we are interested in this project is the lower part of the ...

    • Development of an attitude determination and control simulator for small satellites 

      Piñón Mediero, Jorge (Universitat Politècnica de Catalunya, 2024-05-16)
      Master thesis
      Restricted access - confidentiality agreement

    • Disseny i construcció d'una sonda atmosfèrica 

      Castellà Ayala, David; Fournier Cairó, Yannick (Universitat Politècnica de Catalunya, 2016-11-28)
      Bachelor thesis
      Open Access
      The project consists of the construction of a functional meteorological probe, controlled by an Arduino microcontroller. This probe was design to measure pressure and temperature as functions of the altitude. This device ...

    • Els efectes de la radiació espacial sobre components macroscòpics dels éssers humans a òrbites LEO i MEO 

      Verderi Sala, Axel (Universitat Politècnica de Catalunya, 2011-09-11)
      Bachelor thesis
      Open Access
      En aquest treball es descriu i analitza els efectes de la radiació espacial en diferent parts del cos humà i, en particular, sobre un model de tòrax humà. La principal eina utilitzada és el programari SPENVIS, desenvolupat ...

    • Efectes de la radiació sobre els components electrònics d'un satèl·lit en òrbita al voltant de la Terra 

      Molas Pous, Laia (Universitat Politècnica de Catalunya, 2011-06-03)
      Bachelor thesis
      Open Access
      Aquest treball analitza els efectes de la radiacio a l'espai sobre components electronics. En particular, considerem els efectes de la radiacio sobre el Wikisat, un femto-satel?lit desenvolupat a l'EETAC que es llancara ...

    • Effects of radiation on the electronic components of a satellite in Polar Low Earth Orbit 

      Bermejo Dalmau, Esther (Universitat Politècnica de Catalunya, 2012-07-17)
      Bachelor thesis
      Open Access
      This project aims to analyze space radiation effects on the electronic components of WikiSat, the femto-satellite developed at EETAC. We present a further development of the project presented by Laia Molas Pous, in which ...