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Normalización estadística para fusión biométrica multimodal
(Universitat Politècnica de Catalunya, 2011-03-17)
Tesi.
Accés obert
Tesi.
Accés obert
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 ...
Design of efficient microwave power amplifier systems
(Universitat Politècnica de Catalunya, 2014-12-15)
Tesi.
Accés obert
Tesi.
Accés obert
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 a critical component ...
Grapheme-to-phoneme conversion in the era of globalization
(Universitat Politècnica de Catalunya, 2015-03-13)
Tesi.
Accés obert
Tesi.
Accés obert
This thesis focuses on the phonetic transcription in the framework of text-to-speech conversion, especially on improving adaptability, reliability and multilingual support in the phonetic module. The language is constantly ...
Nonlinear mechanisms in passive microwave devices
(Universitat Politècnica de Catalunya, 2011-06-22)
Tesi.
Accés obert
Tesi.
Accés obert
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 ...
Optimization of emerging extended FTTH WDM/TDM PONs and financial overall assessment
(Universitat Politècnica de Catalunya, 2013-11-26)
Tesi.
Accés obert
Tesi.
Accés obert
Optical access technology has experienced a boost in the last years, thanks to the continuously migrating multimedia services that are offered over the internet. Though the technologies used for deploying Fiber-To-The-x ...
Millimeter-wave and terahertz imaging techniques
(Universitat Politècnica de Catalunya, 2013-07-22)
Tesi.
Accés obert
Tesi.
Accés obert
This thesis presents the development and assessment of imaging techniques in the millimeterwave (mmW) and terahertz frequency bands. In the first part of the thesis, the development of a 94 GHz passive screener based on a ...
Ground moving target indication with synthetic aperture radars for maritime surveillance
(Universitat Politècnica de Catalunya, 2015-03-26)
Tesi.
Accés obert
Tesi.
Accés obert
The explosive growth of shipping traffic all over the World, with around three quarters of the total trade goods and crude oil transported by sea, has raised newly emerging concerns (economical, ecological, social and ...
Síntesis de voz aplicada a la traducción voz a voz
(Universitat Politècnica de Catalunya, 2012-10-23)
Tesi.
Accés obert
Tesi.
Accés obert
In the field of speech technologies, text-to-speech conversion is the automatic generation of artificial voices that sound identical to a human voice when reading a text in loud speech. Inside a text-to-speech system, the ...
Multidimensional and temporal SAR data representation and processing based on binary partition trees
(Universitat Politècnica de Catalunya, 2014-06-13)
Tesi.
Accés obert
Tesi.
Accés obert
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 ...
Design and performance evaluation of millimeter-wave flat lens antennas for communications, radar and imaging applications
(Universitat Politècnica de Catalunya, 2016-07-29)
Tesi.
Accés obert
Tesi.
Accés obert
Millimeter-wave systems introduce a set of particular severe requirements from the antenna point of view in order to achieve specific performances. In this sense, high directive antennas are required to overcome the huge ...