Now showing items 208-227 of 347
Maceira Duch, Marc (Date of defense: 2017-06-21)
Depth map data is used to supplement the color data in multi-view sequences. As depth maps present distinct Characteristics than natural color images, new coding techniques are required to represent their smooth regions ...
Alonso González, Alberto (Date of defense: 2014-06-13)
This thesis deals with the processing of different types of multidimensional SAR data for distinct applications. Instead of handling the original pixels of the image, which correspond to very local information and are ...
López Martinez, Carlos (Date of defense: 2003-06-02)
Los Radares de Apertura Sintética, o sistemas SAR, representan el mejorejemplo de sistemas activos de teledetección por microondas. Debido a su naturaleza coherente, un sistema SAR es capaz de adquirir información dedispersión ...
Ferrer González, Pere Josep (Date of defense: 2015-07-17)
Over the last decades, Metamaterials (MTMs) have caught the attention of the scientific community. Metamaterials are basically artificially engineered materials which can provide unusual electromagnetic properties not ...
Tamayo Palau, José María (Date of defense: 2011-02-17)
El Método de los Momentos (MoM) ha sido ampliamente utilizado en las últimas décadas para la discretización y la solución de las formulaciones de ecuación integral que aparecen en muchos problemas electromagnéticos de ...
Contreras Lizarraga, Adrián Arturo (Date of defense: 2013-11-29)
This thesis presents the conception, design and implementation of new topologies of multimodal microwave resonators and filters, using a combination of uniplanar technologies such as coplanar waveguide (CPW), coplanar ...
Marqués Acosta, Fernando (Date of defense: 1992-11-22)
La segmentación de imágenes es una técnica que tiene como finalidad dividir una imagen en un conjunto de regiones, asignando a cada objeto en la escena una o varias regiones. Para obtener una segmentación correcta, cada ...
Piles Guillem, Maria (Date of defense: 2010-07-16)
La humedad del suelo es la variable que regula los intercambios de agua, energía, y carbono entre la tierra y la atmósfera. Mediciones precisas de humedad son necesarias para una gestión sostenible de los recursos hídricos, ...
González Vidal, Juan José (Date of defense: 2017-09-29)
The application of spectroscopic techniques is crucial for art historians and conservators who require knowledge of materials used in works of art (pigments, dyes, binders, additives, ...) in particular instances. In this ...
Antonopoulos, Angelos (Date of defense: 2012-12-17)
The introduction of third generation (3G) technologies has caused a vast proliferation of wireless devices and networks, generating an increasing demand for high level Quality of Service (QoS). The wide spread of mobile ...
Tseliou, Georgia (Date of defense: 2019-07-17)
The complexity of operation and management of emerging cellular networks significantly increases, as they evolve to correspond to increasing QoS needs, data rates and diversity of offered services. Thus critical challenges ...
Omella Cancer, Mireia (Date of defense: 2010-10-18)
This research is developed in the context of the Next Generation of Passive Optical Networks (NG-PON) for Fibre to the Home (FTTH) network. In this thesis, several techniques are proposed in order to increase the network ...
Joroughi, Vahid (Date of defense: 2015-12-02)
Satellite communication will play a central role towards fulfilling next generation 5G communication requirements. As a matter of fact, anytime-anywhere connectivity cannot be conceived without the presence of the satellite ...
Velásquez Micolta, Juan Camilo (Date of defense: 2019-07-25)
Nowadays, Fiber-to-the-Home is one of the most promising solutions to provide broadband services in access networks. However, the fiber is inefficiently used as most of the deployed systems are still based on Time Division ...
Escayola Elias, Francesc Xavier (Date of defense: 2015-12-11)
In recent decades, the industry of communications has acquired huge significance, and nowadays constitutes an essential tool for the society information. Thus, the exponential growth in demand of broadband services and ...
García Pastor, David (Date of defense: 2021-03-09)
Nowadays, mobile devices have become a key technology in our lives, making us become part of a connected world, in which millions of mobile handsets are sold every year. In order to satisfy the user demands, many mobile ...
Rocas Cantenys, Eduard (Date of defense: 2011-06-22)
The telecommunications industry follows a tendency towards smaller devices, higher power and higher frequency, which imply an increase on the complexity of the electronics involved. Moreover, there is a need for extended ...
González Rodríguez, Marta (Date of defense: 2023-02-10)
(English) Nowadays, worldwide booming growth in mobile devices puts a lot of pressure on the mobile communications technologies since an enormous amount of requirements, mainly focused on delivering enhanced mobile broadband ...
Acampora, Alessandro (Date of defense: 2013-07-30)
It is widely believed that many drawbacks in today's wireless communication paradigm might be relieved by enabling high carrier frequency transmission, and endowing both the network and the user equipment with some degree ...
Ejarque Monserrate, Pascual (Date of defense: 2011-03-17)
Los sistemas de reconocimiento biométrico utilizan ciertas características humanas como la voz, los rasgos faciales, la huella dactilar, el iris o la geometría de la mano para identificar a un individuo o verificar su ...