Browsing Programa de Doctorat en Ciència i Tecnologia Aeroespacials by Subject "621.3"

Now showing items 1-15 of 15

    Consolidation and assessment of a technique to provide fast and precise point positioning (Fast-PPP) 

    Rovira Garcia, Adrià (Date of defense: 2016-01-21)

    The research of this paper-based dissertation is focused on the Fast Precise Point Positioning (Fast-PPP) technique. The novelty relies on using an accurate ionosphere model, in combination with the standard precise satellite ...

    Contribution to the development of pico-satellites for Earth observation and technology demonstrators 

    Jové Casulleras, Roger (Date of defense: 2015-02-17)

    The submitted Ph.D. thesis is a contribution to the development of pico-satellites and nano-satellites for Earth Observation and Technology Demonstrators. Development of satellites with a mass from 1 kg up to 10 kg has ...

    Contributions to GNSS-R earth remote sensing from nano-satellites 

    Carreno-Luengo, Hugo (Date of defense: 2016-01-21)

    Global Navigation Satellite Systems Reflectometry (GNSS-R) is a multi-static radar using navigation signals as signals of opportunity. It provides wide-swath and improved spatio-temporal sampling over current space-borne ...

    Contributions to high accuracy snapshot GNSS positioning 

    Liu, Xiao (Date of defense: 2022-11-10)

    (English) Snapshot positioning is the technique to determine the position of a Global Navigation Satellite System (GNSS) receiver using only a very brief interval of the received satellite signal. In recent years, this ...

    Contributions to ionospheric determination with global positioning system: solar flare detection and prediction of global maps of total electron content 

    García Rigo, Alberto (Date of defense: 2012-12-17)

    Two research studies have been addressed in this thesis. Both of them are of actual scientific interest and are based on processing GNSS data. The first part of this thesis is devoted to GNSS detection and monitoring of ...

    Contributions to ionospheric modeling with GNSS in mapping function, tomography and polar electron 

    Lyu, Haixia (Date of defense: 2020-11-17)

    This dissertation focuses on determining the vertical electron content distribution in low and high vertical resolution from ground-based and LEO on board GNSS data and improving the knowledge of ionosphere climatology in ...

    Contributions to the 3D ionospheric sounding with GPS data 

    García Fernández, Miquel (Date of defense: 2004-03-15)

    La tesi proposa una sèrie d'algoritmes destinats a obtenir informació del contingut d'electrons lliures presents a la ionosfera. El tipus de dades que s'utilitzaran seran bàsicament les corresponents a receptors de dades ...

    Dynamic stochastic modeling for inertial sensors 

    Wis Gil, Mariano (Date of defense: 2016-11-02)

    Es ampliamente conocido que los modelos de error para sensores inerciales tienen dos componentes: El primero es un componente determinista que normalmente es calibrado por el fabricante en el firmware de la IMU. El segundo ...

    Dynamics and control of tethered satellite formations in low-Earth orbits 

    Fedi Casas, Manrico (Date of defense: 2015-04-24)

    This thesis is focused on the study of dynamics and control of a multi-tethered satellite formation, where a multi-tethered formation is made up with several satellites (agents) connected by means of cables (tethers). The ...

    A fast engineering approach to high efficiency power amplifier linearization for avionics applications 

    Wang, Teng (Date of defense: 2020-12-17)

    This PhD thesis provides a fast engineering approach to the design of digital predistortion (DPD) linearizers from several perspectives: i) enhancing the off-line training performance of open-loop DPD, ii) providing ...

    Ground and marine resilient integration technology of multi-source sensors for navigation and positioning 

    Li, Mowen (Date of defense: 2024-07-31)

    (English) The present thesis focuses on the resilient terrestrial and marine technological integration for navigation and positioning based on the Global Navigation Satellite System (GNSS), the Inertial Navigation System ...

    High-resolution deformation measurement using "Persistent Scatterer Interferometry" 

    Devanthéry Arasa, Núria (Date of defense: 2014-10-31)

    Persistent Scatterer Interferometry (PSI) is a group of advanced differential interferometric SAR techniques that are used to measure and monitor terrain deformation. Different PSI techniques have been proposed in the last ...

    PoCoLoCo : Positioning through cooperating loquacious communications 

    Ramírez Alcántara, Jorge (Date of defense: 2015-02-24)

    Aerial Transportation system is based in a legacy infrastructure that supports its different functionality separately. There is a tendency to simplify the infrastructure, increasing its efficiency, technical and monetary. UAS ...

    Sentinel-1 data exploitation for terrain deformation monitoring 

    Krishnakumar, Vrinda (Date of defense: 2022-09-29)

    Persistent Scatterer interferometry (PSI) is a group of advanced differential interferometric Synthetic Aperture Radar (SAR) techniques used to measure and monitor terrain deformation. Sentinel-1 has improved the data ...

    World-wide analysis and modelling of the ionospheric and plasmaspheric electron contents by means of radio occultations 

    Shao, Yixie (Date of defense: 2019-02-25)

    The research of this dissertation is studying the ionosphere by GPS radio occultation (RO) techniques. It is mainly divided into two parts. The first part focuses on the methodology in electron density profile retrievals ...