Browsing by Subject "Artificial satellites"
Now showing items 1-20 of 184
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3 cat-4 attitude control system
(Universitat Politècnica de Catalunya, 2018-07-09)
Master thesis
Restricted access - author's decisionThe 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
(2017)
Article
Open AccessThis 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
(Institute of Electrical and Electronics Engineers (IEEE), 2017)
Conference report
Restricted access - publisher's policyThe 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
(2017-07-18)
Article
Open AccessIn 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 method for the experimental characterisation of novel drag-reducing materials for very low Earth orbits using the Satellite for Orbital Aerodynamics Research (SOAR) mission
(2022-04-07)
Article
Open AccessThe Satellite for Orbital Aerodynamics Research (SOAR) is a 3U CubeSat mission that aims to investigate the gas–surface interactions (GSIs) of diferent materials in the very low Earth orbit environment (VLEO), i.e. below ... -
A swarm of femtosatellites for lower thermospheric density determination.
(Universitat Politècnica de Catalunya, 2015-07-30)
Master thesis
Open AccessThe 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
(Universitat Politècnica de Catalunya, 2019-07-24)
Bachelor thesis
Open AccessContext: 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
(2014)
Conference report
Open AccessMission 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
(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
(Universitat Politècnica de Catalunya, 2015-07)
Master thesis (pre-Bologna period)
Open AccessThe 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
(2020-03-31)
Article
Open Access -
Analysis on the feasability of airborne GNSS-R receivers for weather nowcasting and target detection
(2020)
Conference lecture
Open AccessWeather forecast relies to a large extent on data acquired by satellite. LEO polar satellites provide global coverage, but poor spatial resolution. GEO satellites provide a better coverage and revisit time, at expenses of ... -
Anàlisi de viabilitat d'un satèl·lit en òrbita LEO
(Universitat Politècnica de Catalunya, 2010-01-20)
Bachelor thesis
Open AccessThe 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
(2018-03-26)
Article
Open AccessWhile 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
(Institute of Electrical and Electronics Engineers (IEEE), 2020-09-07)
Article
Open AccessSince 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
(Universitat Politècnica de Catalunya, 2017-05-05)
Bachelor thesis
Open Access
Covenantee: École polytechnique de MontréalFrom 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
(Universitat Politècnica de Catalunya, 2018-07-27)
Bachelor thesis
Open Access
Covenantee: NanoSat LabThe 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
(Universitat Politècnica de Catalunya, 2016-06-27)
Bachelor thesis
Open AccessEste 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
(Institute of Electrical and Electronics Engineers (IEEE), 2014)
Conference report
Open AccessWe 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
(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 ...