Programa de Doctorat en Ciència i Tecnologia Aeroespacials: Recent submissions
Now showing items 41-60 of 69
Cost-based linear holding practice and collaborative air traffic flow management under trajectory based operations
The current air transportation system is reaching the capacity limit in many countries/regions across the world. It tends to be less efficient or even incapable sometimes to deal with the enormous air traffic demand that ...
A high-performace computing tool for partitioned multi-physics applications
The simulation and modelling of complex applications involving the interaction of processes governed by different physical principles is addressed in this thesis. The interaction of a fluid with a deformable body, or the ...
Dynamic stochastic modeling for inertial sensors
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 ...
High-order hybridizable discontinuous Galerkin method for viscous compressible flows
Computational Fluid Dynamics (CFD) is an essential tool for engineering design and analysis, especially in applications like aerospace, automotive and energy industries. Nowadays most commercial codes are based on Finite ...
Consolidation and assessment of a technique to provide fast and precise point positioning (Fast-PPP)
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 ...
Thermal diagnostics experiments for LISA Pathfinder
The LISA Pathfinder project is an ESA/NASA technology demonstrator mission that must test the critical instrumentation required for a future space-borne gravitational wave observatory based on the LISA design. The satellite, ...
Contributions to GNSS-R earth remote sensing from nano-satellites
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 ...
Improvement of corrosion and mechanical properties of amorphous steels by microalloying and nanocrystallization
Los aceros amorfos que contienen cantidades óptimas de cromo son muy atractivos para aplicaciones prácticas debido a su comportamiento frente a la corrosion. Estas aleaciones tienen extraordinarias propiedades de resistencia ...
Dynamics and control of tethered satellite formations in low-Earth orbits
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 ...
PoCoLoCo : Positioning through cooperating loquacious communications
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 ...
Contribution to the development of pico-satellites for Earth observation and technology demonstrators
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 ...
High-resolution deformation measurement using "Persistent Scatterer Interferometry"
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 ...
Collective dynamics of bulk metallic glasses studied by molecular dynamics simulations
The development of new materials impacts on all branches of engineering and, in particular, in aerospace engineering. Metallic glasses (MG) are relatively newcomers to the world of materials science and have excellent ...
Transitional periods of the atmospheric boundary layer
The atmospheric boundary layer is the part of the troposphere influenced by the presence of the surface, and where most weather phenomena occur. During the day, with fair weather conditions, a convective boundary layer ...
A systematic approach to airborne sensor orientation and calibration: method and models
Avui dia, s'estima que el mercat de la geom atica mou pels volts de 30 bilions d'euros. Al darrera del creixement d'aquest mercat hi trobem noves tecnologies,projectes i aplicacions, com per exemple, \Global Positioning ...
Magnetic diagnostics algorithms for LISA Pathfinder: system identification and data analysis
LISA (Laser Interferometer Space Antenna) is a joint mission of ESA and NASA, which aims to be the first space-borne gravitational wave observatory. LISA will consist in a constellation of three spacecraft at the vertexes ...
Contributions to ionospheric determination with global positioning system: solar flare detection and prediction of global maps of total electron content
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 ...
Cruise speed reduction for air traffic flow management
Avui dia un considerable nombre d’infraestructures del transport aeri tenen problemes de congestió. Aquesta situació es veu empitjorada amb l’increment de trànsit existent i amb la seva densitat deguda al sistema de hub i ...
An analysis of two-phase flows in conditions relevant to microgravity
Promising technological applications of two-phase flows in space have captured the increasing interest of the space sector, provoking a strong demand for more fundamental knowledge. Great efforts have been made in recent ...
Deformation measurement and monitoring with Ground-Based SAR
The Ground-Based Synthetic Aperture Radar (GB-SAR) is a relatively new technique, which in the last ten years has gained interest as deformation measurement and monitoring tool. The GB-SAR technique is ...
