Bouali, Faouzi (Date of defense: 2013-09-06)
To overcome the current under-utilization of spectrum resources, the CR (Cognitive Radio) paradigm has gained an increasing interest to perform the so-called Dynamic Spectrum Access (DSA). In this ...
Busquets Monge, Sergio (Date of defense: 2006-02-08)
Las topologías de convertidores multinivel han recibido una atención especial durante las dos últimas décadas debido a sus notables ventajas en aplicaciones de alta potencia y media/alta tensión. En ...
Moragrega Estrany, Anna (Date of defense: 2016-02-04)
In Wireless Sensor Networks (WSN), the ability of sensor nodes to know its position is an enabler for a wide variety of applications for monitoring, control, and automation. Often, sensor data is ...
Solh Joukhah, Zahra (Date of defense: 2017-10-27)
The present PhD thesis deals with transformer inrush current in offshore grids including offshore wind farms and High Voltage Direct Current (HVDC) transmission systems. The inrush phenomenon during ...
Temko, Andriy (Date of defense: 2007-01-23)
L'activitat humana que té lloc en sales de reunions o aules d'ensenyament es veu reflectida en una rica varietat d'events acústics, ja siguin produïts pel cos humà o per objectes que les persones manegen. ...
Kumar, Dhiraj (Date of defense: 2012-07-16)
The increasing need for range-resolved aerosol and water-vapour atmospheric observation networks worldwide has given rise to multi-spectral LIDARs (Light Detection and Ranging, a synonym of laser radar) ...
Sequeira, Diogo Gonçalo (Date of defense: 2022-10-31)
(English) Optical communications have been extensively investigated and enhanced in the last decades. Nowadays, they are responsible to transport all the data traffic generated around the world, from ...
Tello Alonso, Maria Victoria (Date of defense: 2011-02-07)
In the recent years, a wide interest has been focused on research and development for the operational use of satellite remote sensing tools for Earth observation. Among different types of sensors, ...
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 ...
Ferré Tomàs, Rafel (Date of defense: 2008-04-11)
En aquesta tesi s'estudia la passivació del silici cristal·lí per a la producció de cèl·lules solars d'alta eficiència (> 20%) a baix preu.<br/>Actualment la indústria fotovoltaica empra capes de nitrur ...