Advanced GNSS-R instruments for altimetric and scatterometric applications 

    Onrubia Ibáñez, Raúl (Date of defense: 2020-03-13)

    This work is the result of more than eight years during a bachelor thesis, a master thesis, and the Ph.D. thesis dedicated to the development of the Microwave Interferometric Reflectometer (MIR) instrument. It summarizes ...

    Analysis and design of an edge-technique-based Doppler wind lidar: practical assessment of a laboratory prototype 

    Muñoz Porcar, Constantino (Date of defense: 2013-02-22)

    This thesis is the initial stage in the development of a range-resolving Doppler wind lidar. Atmospheric lidars emit pulsed laser radiation that after being scattered by air molecules and suspended aerosol particles is ...

    Application of DInSAR techniques to the monitoring of ground deformations 

    Tessitore, Serena (Date of defense: 2014-05-09)

    The aim of the present thesis has been to test the applicability of the innovative Advanced DInSAR techniques in the natural risk mitigation related to subsidence phenomena. In particular, two test sites have been chosen, ...

    Atmospheric compensation experiments on free-space optical coherent communication systems 

    Anzuola Valencia, Esdras (Date of defense: 2015-06-15)

    In the last years free-space optical communications systems for wireless links have been proposed, studied, and implemented mainly due to the higher bandwidth that this technology is able to provide. Still, radio frequency ...

    Atmospheric-boundary-layer height retrieval using microwave radiometer and lidar sensors : algorithms and error estimation 

    Saeed, Umar (Date of defense: 2016-07-22)

    The Atmospheric Boundary Layer Height (ABLH) is an important parameter in weather forecasting, meteorology, avionics, and air-quality and dispersion models. Local development of the Atmospheric Boundary Layer (ABL) over ...

    Contributions to land, sea, and sea ice remote sensing using GNSS-reflectometry 

    Alonso Arroyo, Alberto (Date of defense: 2016-11-10)

    This PhD thesis researches the use of passive remote sensing techniques using signals transmitted from the navigation satellites (GNSS) in order to retrieve different geophysical parameters. The thesis consists of two ...

    Contributions to the determination of electromagnetic bias in Gnss-R altimetry 

    Ghavidel, Ali (Date of defense: 2015-07-14)

    In this Ph. D. dissertation the electromagnetic bias in GNSS-R (Global Navigation Satellite Systems Reflectometry) altimetry has been studied. GNSS-R altimetry is a new type of system that uses navigation signals as signals ...

    Design and performance analysis of advanced GNSS-R instruments back-end 

    Pascual Biosca, Daniel (Date of defense: 2020-12-21)

    GNSS reflectometry (GNSS-R) is a set of techniques that uses the reflected GNSS signals over the Earth’s surface as opportunity signals for remote sensing applications. In 1993, the European Space Agency (ESA) suggested ...

    Development of novel instruments and techniques for passive microwave remote sensing 

    Muñoz Martin, Joan Francesc (Date of defense: 2021-06-17)

    Earth Observation using satellites has helped to better model our planet. The goal of such systems is to provide large data sets to help to understand the effects of our actions on the climate, to predict storms in near ...

    Do-it-yourself instruments and data processing methods for developing marine citizen observatories 

    Pons Freixes, Sergi (Date of defense: 2016-01-28)

    Water is the most important resource for living on planet Earth, covering more than 70% of its surface. The oceans represent more than 97% of the planet total water and they are where more than the 99.5% of the living ...

    GNSS reflectometry for land remote sensing applications 

    Egido Egido, Alejandro (Date of defense: 2013-07-05)

    Soil moisture and vegetation biomass are two essential parameters from a scienti c and economical point of view. On one hand, they are key for the understanding of the hydrological and carbon cycle. On the other hand, soil ...

    GNSS-R as a source of opportunity for remote sensing of the cryosphere 

    Fabra Cervellera, Francisco (Date of defense: 2013-05-13)

    This work evaluates the potential use of signals from the Global Navigation Satellite Systems (GNSS) that scatter off the Earth surface for the retrieval of geophysical information from the cryosphere. For this purpose, ...

    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 ...

    Interferometric GNSS-R processing : modeling and analysis of advanced processing concepts for altimetry 

    Martín Alemany, Francisco (Date of defense: 2015-07-14)

    This PhD dissertation is focused on the use of the opportunity signals from the Global Navigation Satellite Systems (GNSS), that scatter-off the Earth's surface for perform ocean mesoscale altimetry (the so called GNSS-R ...

    Lidar and S-band radar profiling of the atmosphere : adaptive processing for boundary-layer monitoring, optical-parameter error estimation, and application cases 

    Lange Vega, Diego (Date of defense: 2014-07-17)

    This Ph.D. thesis addresses remote sensing of the atmosphere by means of lidar and S-band clear-air weather radar, and related data signal processing. Active remote sensing by means of these instruments offers unprecedented ...

    Ocean surface currents reconstruction from microwave radiometers measurements 

    González Haro, Cristina (Date of defense: 2015-05-22)

    Ocean currents are a key component to understanding many oceanic and climatic phenomena and knowledge of them is crucial for both navigation and operational applications. Therefore, a key problem in oceanography is the ...

    On the detection of ionospheric waves, relationship with earthquakes and tsunamis 

    Yang, Heng, 1985- (Date of defense: 2019-06-11)

    The research of this thesis addresses the detection and characterization of ionospheric waves and its application to traveling ionospheric disturbances (TIDs) induced by the natural events, such as earthquakes and tsunamis. ...

    Three dimensional temporal-spatial model based SAR algorithms for monitoring large gradient deformations in mining area 

    Du, Sen (Date of defense: 2022-05-13)

    Firstly, an External Model Deformation Decomposition based Persistent Scatters Interferometry (EMDD-PSI) method has been proposed. This method first uses original interferograms to optimize the parameters of the external ...