Mostrando ítems 31-40 de 353
Niotaki, Kyriaki (Fecha de defensa: 2014-12-15)
In the future communication systems, it is of key importance that the transceivers are capable of operating in multiple frequency bands and with complex signals. In this context, the power amplifier is ...
Bouali, Faouzi (Fecha de defensa: 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 ...
González Arbesú, José María (Fecha de defensa: 2000-04-06)
La presente Tesis Doctoral toma como base los trabajos iniciados por investigaciones de la Universidad de Colorado(USA) orientados hacia la medida de las correintes superficiales inducidas por radiaciones ...
Moragrega Estrany, Anna (Fecha de defensa: 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 ...
Temko, Andriy (Fecha de defensa: 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 (Fecha de defensa: 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) ...
Tello Alonso, Maria Victoria (Fecha de defensa: 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 (Fecha de defensa: 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 ...
Khan, Umair (Fecha de defensa: 2021-01-11)
In speaker recognition, i-vectors have been the state-of-the-art unsupervised technique over the last few years, whereas x-vectors is becoming the state-of-the-art supervised technique, these days. ...
Gómez, Ismael (Fecha de defensa: 2013-12-19)
The aim of this thesis is defining and developing the concept of an efficient management of radio and computing resources in an SDR cloud. The SDR cloud breaks with today's cellular architecture. A set ...