Listar Dpto. Ingeniería Eléctrica y Electrónica - Ingeniaritza Elektriko eta Elektronikoa Saila por título
Mostrando ítems 88-107 de 648
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Comparison between capacitive and microstructured optical fiber soil moisture sensors
López Aldaba, Aitor
; López Torres, Diego 
; Campo-Bescós, Miguel ; López Rodríguez, José Javier ; Yerro Lizarazu, David; Elosúa Aguado, César ; Arregui San Martín, Francisco Javier ; Auguste, Jean-Louis; Jamier, Raphael; Roy, Philippe; López-Amo Sáinz, Manuel (MDPI, 2018)
Artículo / Artikulua 
Soil moisture content has always been an important parameter to control because it is a deterministic factor for site-specific irrigation, seeding, transplanting, and compaction detection. In this work, a discrete sensor ... -
Comparison of linear and and small-signal models for inverter-based microgrids
Urtasun Erburu, Andoni ; Sanchis Gúrpide, Pablo ; Marroyo Palomo, Luis (IEEE, 2014)
Contribución a congreso / Biltzarrerako ekarpena
Frequency and voltage regulation in droop-based microgrids is generally modeled using small-signal analysis. In order to ensure accuracy, existing models do not decouple real and reactive power responses. However, the ... -
Comparison of State-of-Charge estimation methods for stationary Lithium-ion batteries
Berrueta Irigoyen, Alberto ; San Martín Biurrun, Idoia ; Sanchis Gúrpide, Pablo ; Ursúa Rubio, Alfredo (IEEE, 2016)
Contribución a congreso / Biltzarrerako ekarpena
An accurate monitoring of the State of Charge (SoC) is mandatory for an efficient management of a Lithium-ion battery. Batteries of stationary systems barely have long resting periods when the cumulative errors can be ... -
Comparison of wavelength-division-multiplexed distributed fiber Raman amplifier networks for sensors
Díaz Lucas, Silvia ; López-Amo Sáinz, Manuel (Optical Society of America, 2006)
Artículo / Artikulua
A novel distributed fiber Raman amplified star topology used for optical sensor wavelength-division multiplexing is proposed. The performance of this star configuration is compared to an optically amplified bus topology. ... -
Compensation of forecast error in large PV plants with battery storage: associated strategies
Marcos Álvarez, Javier ; Parra Laita, Íñigo de la ; Muñoz Escribano, Mikel ; García Solano, Miguel ; Marroyo Palomo, Luis (2017)
Contribución a congreso / Biltzarrerako ekarpena
As penetration rates of utility-scale photovoltaics (PV) increases, large PV plants will participate in the daily wholesale electricity market in the same way that wind farms. Then, PV plant owner can receive some kind of ... -
A complete optimization-loop, including feeders, of antenna systems based on reflectors
Delgado, D.; Teniente Vallinas, Jorge ; Río Bocio, Carlos del ; Haro, L. de; Martínez, J. A.; Pino, A.G (IEEE, 2005)
Contribución a congreso / Biltzarrerako ekarpena
In the design process of a complete antenna system based on reflectors, the feed real performance is usually included once the reflectors have been optimized with an ideal feed. In this paper, the proposal is to include ... -
Comportamiento de propagacion electromagnetica en el apilamiento de agujeros sublambda y agujeros propagantes
Navarro Cía, Miguel ; Beruete Díaz, Miguel ; Falcone Lanas, Francisco Javier ; Campillo, Igor; Sorolla Ayza, Mario (2009)
Contribución a congreso / Biltzarrerako ekarpena
In this work, we provide more insight on the physics underlying the transmission through subwavelength hole arrays metaprism by comparing it with propagating hole arrays prism. We show the critical role that the size ... -
Compound lasing fiber optic ring resonators for sensor sensitivity enhancement
Rota Rodrigo, Sergio; González Herráez, Miguel; López-Amo Sáinz, Manuel (IEEE / OSA, 2015)
Artículo / Artikulua
In this work, a new method for increasing simultaneously the sensitivity and interrogation stability of fiberoptic intensity sensors is presented. The configuration is based on a double-coupler ring resonator. On one side, ... -
A comprehensive analysis of the absorption spectrum of conducting ferromagnetic wires
Liberal Olleta, Íñigo ; Ederra Urzainqui, Íñigo ; Gómez Polo, Cristina ; Labrador Otamendi, Alberto; Pérez de Landazábal Berganzo, José Ignacio ; Gonzalo García, Ramón (IEEE, 2012)
Artículo / Artikulua
A detailed analysis of the absorption spectrum of conductive ferromagnetic wires is presented. The absorption spectrum is computed from the solution to the scattering problem, and circuit models are formulated to clarify ... -
A comprehensive model for lithium-ion batteries: from the physical principles to an electrical model
Berrueta Irigoyen, Alberto ; Urtasun Erburu, Andoni ; Ursúa Rubio, Alfredo ; Sanchis Gúrpide, Pablo (Elsevier, 2018)
Artículo / Artikulua
The growing interest in e-mobility and the increasing installation of renewable energy-based systems are leading to rapid improvements in lithium-ion batteries. In this context, battery manufacturers and engineers require ... -
Computation of greatest common divisor for the blind deconvolution of transient impulsive signals
Lecumberri Villamediana, Pablo; Gómez Fernández, Marisol ; Carlosena García, Alfonso (Universitat Politècnica de Catalunya, 2005)
Contribución a congreso / Biltzarrerako ekarpena
We propose a new blind deconvolution method for transient impulsive signals in a single input – multiple output (SIMO) system. The method exploits the data redundancy inherent to SIMO multichannel systems to obtain an ... -
Concrete beam bending test monitorization using a high strain fiber optic sensor
Bravo Acha, Mikel ; Sáenz, J.; Bravo Navas, M.; López-Amo Sáinz, Manuel (IEEE / OSA, 2012)
Artículo / Artikulua
In this work the development of an 'eight-shape' fiber optic sensor for high strain measurement is experimentally demonstrated. This strain sensor is interrogated using a commercial optical time domain reflectometer through ... -
Conexión en paralelo de convertidores para la generación de la red auxiliar de un tren
Garralda Sanz, Daniel (2014)
Tesis doctoral / Doktoretza tesia
Los equipos de potencia destinados a crear la red eléctrica interna que alimenta todos los sistemas eléctricos del tren, a excepción de los motores de tracción, se denominan sistemas de alimentación auxiliar y constituyen ... -
Conical versus gaussian profiled corrugated horn antennas
Teniente Vallinas, Jorge ; Gonzalo García, Ramón ; Río Bocio, Carlos del (IEEE, 2002)
Contribución a congreso / Biltzarrerako ekarpena
In this paper, a study of two equal size corrugated horn antennas; a conical and a gaussian profiled horn antenna (GPHA) has been developed. It will be demonstrated that GPHA´s provide lower sidelobes and wider ... -
Consideraciones de paraxialidad en modos gaussianos de orden superior
Ruiz de la Cuesta, María Teresa; Río Bocio, Carlos del ; Gonzalo García, Ramón ; Sorolla Ayza, Mario (1996)
Contribución a congreso / Biltzarrerako ekarpena
Usually, the gaussian beam modes are assumed to be solutions of the wave equation in the free space. Nevertheless, these modes are obtained supposing some paraxial restrictions. Therefore, we will have to check if our ... -
Consistent modeling and power gain analysis of microwave SiGe HBTs in CE and CB configurations
(IEEE, 2015) Artículo / Artikulua
This paper presents a methodology to model SiGe HBTs biased in common-emitter and in common-base configurations including the bias-dependent substrate parasitics, which allows determining the more suitable configuration ... -
Continuous liquid-level sensor based on a long-period grating and microwave photonics filtering techniques
Ricchiuti, Amelia L.; Barrera, D.; Urrutia Azcona, Aitor ; Goicoechea Fernández, Javier ; Arregui San Martín, Francisco Javier (IEEE, 2016)
Artículo / Artikulua
A fiber optic liquid-level sensor based on a long period grating (LPG) is proposed and experimentally validated. The principle of operation is based on a technique used to analyze microwave photonics filters. A 4-cm-long ... -
Contribución al desarrollo de refractómetros de fibra óptica basados en resonancias de modos con pérdidas
Sánchez Zábal, Pedro (2017)
Tesis doctoral / Doktoretza tesia
El desarrollo de nuevos materiales y métodos de deposición a escala nanométrica ha supuesto una auténtica revolución en muchas disciplinas de la investigación. En particular, los recubrimientos nanoestructurados permiten ... -
Contribution to the advancement of Brillouin optical time-domain analysis sensors
Iribas Pardo, Haritz (2018)
Tesis doctoral / Doktoretza tesia
Distributed fiber optic sensors (DFOS) are becoming an increasingly used technology to monitor the integrity of structures. This is due to the fact that this technology can be embedded within the structure and provide ... -
Contribution to the development of Brillouin optical time-domain analysis sensors
Urricelqui Polvorinos, Javier (2016)
Tesis doctoral / Doktoretza tesia
This thesis dissertation concentrates on solving some of the limitations described by proposing novel techniques. The first technique is based on using a phase-modulated probe wave with self-heteroyne detection and RF ...
