Mostrando ítems 245-264 de 346
Oro García, David (Fecha de defensa: 2020-11-17)
Recently, facial recognition systems have become extremely popular and deployments of this technology are now ubiquitous. Applications ranging from access control to automated surveillance of video feeds rely on facial ...
Gallego Vila, Jaime (Fecha de defensa: 2013-10-14)
Foreground segmentation in video sequences is an important area of the image processing that attracts great interest among the scientist community, since it makes possible the detection of the objects that appear in the ...
Giró i Nieto, Xavier (Fecha de defensa: 2012-05-31)
This thesis addresses the problem of visual object retrieval, where a user formulates a query to an image database by providing one or multiple examples of an object of interest. The presented techniques aim both at finding ...
Ramos Pérez, Isaac (Fecha de defensa: 2012-02-27)
The Soil Moisture and Ocean Salinity (SMOS) mission is an Earth Explorer Opportunity mission from the European Space Agency (ESA). It was a direct response to the global observations of soil moisture and ocean salinity. ...
García Ordoñez, Luis (Fecha de defensa: 2009-05-06)
Los canales multiple-input multiple-output (MIMO) proporcionan una forma abstracta y general de modelar un gran número de sistemas de comunicaciones. Los canales MIMO inalámbricos, en concreto, han despertado un gran interés ...
Merlano Duncan, Juan Carlos (Fecha de defensa: 2012-07-26)
Precise phase synchronization of clock or local oscillator signals over distributed systems is a recurring requirement in the design of a wide range of systems, with applications in telecommunications and, for example, in ...
Chu, Guang Yong (Fecha de defensa: 2016-02-22)
It would be unaffordable if the WDM-PON technologies were directly applied for massive deployment. Hence, the potential WDM-PON is to be integrated and improved in order to adapt it for NGPON and the future 5G. The UDWDM-PON ...
Olmo Alòs, Jaume del (Fecha de defensa: 2019-10-22)
In the next era of communications, where heterogeneous, asynchronous and ultra-low latency networks are drawn on the horizon, classical cryptography might be inadequate due to the excessive cost of maintaining a public-key ...
Pipia, Luca (Fecha de defensa: 2009-09-18)
Las técnicas de Interferometría Diferencial se basan en la combinación de varias imágenes SAR con distinta separación temporal y permiten la recuperación de las componentes lineales y no-lineales del proceso de deformación ...
Henarejos Hernández, Pol (Fecha de defensa: 2017-07-19)
Radiocommunication systems have evolved significantly in recent years in order to meet present and future demands. Historically, time, frequency and more recently, spatial dimensions have been used to improve capacity and ...
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, Synthetic Aperture Radars ...
Tan, Onur (Fecha de defensa: 2016-07-08)
The smart grid (SG) is the enhancement of the traditional electricity grid that allows bidirectional flow of electricity and information through the integration of advanced monitoring, communication and control technologies. ...
Pérez Pueyo, Rosanna (Fecha de defensa: 2005-01-21)
La investigación de los materiales constitutivos de obras de arte, en la que se encuadra esta tesis, es una de las aplicaciones de la espectroscopía Raman que ha ido creciendo en importancia en las últimas décadas. El ...
Martín González, Laura (Fecha de defensa: 2019-04-30)
The dynamic behavior of the traffic demand, due to the advent of technologies such as cloud services or Internet of Things (IoT), is increasing. In fact, heterogeneous connections with different characteristics (bandwidth ...
Novillo Parales, Francisco Vicente (Fecha de defensa: 2013-06-04)
The growing need for wireless connectivity is pushing the massive adoption and usage of Wireless Local Area Networks (WLANs) based on the IEEE 802.11 standard (Wi-Fi), leading to dense deployments of individual, uncoordinated ...
Vivero Millor, Julio (Fecha de defensa: 2003-12-12)
Les expectatives dels usuaris en relació a la quantitat i qualitat del serveis de xarxa estan creixent ràpidament. En canvi, desenvolupar e implantar nous serveis de xarxa (serveis que operen a nivell de xarxa) seguint el ...
Centolanza, Giuseppe (Fecha de defensa: 2015-10-23)
The Earth is continuously monitored by sensors capable of providing diversified information about several phenomena. In particular Synthetic Aperture Radar (SAR) is able to observe the Earth in all-day and all-weather ...
Alemany Prats, Pol (Fecha de defensa: 23-03-23)
(English) The telecommunications' systems are becoming much more intelligent and dynamic due to the expansion of the multiple network types (i.e., wired, wireless, Internet of Things (IoT) and cloud-based networks). Due ...
Blasco Coll, Andreu (Fecha de defensa: 2023-09-27)
(English) Quantum computers use the laws of quantum mechanics to do complex operations that classical computers can't solve. Quantum computers and other physical quantum systems require quantum information to be completely ...
Balcells Ventura, Jordi (Fecha de defensa: 2011-05-20)
Els serveis de telecomunicacions i sistemes radar estan migrant a freqüències mil•limètriques (MMW), on es disposa d 'una major amplada de banda i conseqüentment d'una major velocitat de transmissió de dades. Aquesta ...