Ara es mostren els items 1-18 de 18

  • Active damping control for a three phase grid-connected inverter using sliding mode control 

    Guzmán Solà, Ramon; García de Vicuña Muñoz de la Nava, José Luis; Camacho Santiago, Antonio; Matas Alcalá, José; Castilla Fernández, Miguel; Miret Tomàs, Jaume (2013)
    Text en actes de congrés
    Accés restringit per política de l'editorial
    This paper proposes a ne w active damping method based on virtual resistors for three-phase grid connected voltage source inverters (VSI) with LCL filter. The use of this filters is a standard solution to provide the ...
  • Adaptive estimation of the stable boundary-layer height using backscatter lidar data and a Kalman filter 

    Saeed, Umar; Rocadenbosch Burillo, Francisco; Crewell, Susanne (Institute of Electrical and Electronics Engineers (IEEE), 2015)
    Comunicació de congrés
    Accés restringit per política de l'editorial
    The nocturnal stable boundary-layer height (SBLH) is estimated from the backscatter lidar data by using an adaptive-filtering approach based on an Extended Kalman Filter (EKF). Height-resolved temporal variance of the ...
  • Amortized constant time estimation in Pose SLAM and hierarchical SLAM using a mixed Kalman-information filter 

    Ila, Viorela Simona; Porta Pleite, Josep Maria; Andrade-Cetto, Juan (2011)
    Article
    Accés obert
    The computational bottleneck in all information-based algorithms for simultaneous localization and mapping (SLAM) is the recovery of the state mean and covariance. The mean is needed to evaluate model Jacobians and the ...
  • Comparison between the Kalman and the non-linear least-squares estimators in low signal-to-noise ratio lidar inversion 

    Rocadenbosch Burillo, Francisco; Sicard, Michaël; Comerón Tejero, Adolfo; Md. Reba, Mohd Nadzri (2008)
    Text en actes de congrés
    Accés obert
    This works departs from previously published results of the authors and focus on joint estimation and time evolution of the atmospheric backscatter profile and a range-independent lidar ratio by means of 1) adaptive extended ...
  • Detección de fallos en turbinas aerogeneradoras 

    Río Armenteros, Carlos (Universitat Politècnica de Catalunya, 2015-07-14)
    Projecte Final de Màster Oficial
    Accés obert
    In the wind turbines research field, it is critical the fault detection in sensors, actuators and system; to ensure its operation in optimum working zone in order to avoid material fatigue and, ultimately, reduce maintenance ...
  • DSP-based natural frame control schemes for three-phase unity-power-factor rectifiers 

    Guzmán Solà, Ramon; García de Vicuña Muñoz de la Nava, José Luis; Pena Alzola, Rafael (The institution of Engineering and Technology, 2016-05-01)
    Capítol de llibre
    Accés restringit per política de l'editorial
    Traditionally, digital signal processor (DSP) control algorithms for three-phase power converters are designed in rotating or stationary reference frames. These approaches require the use of rotation matrices and employ ...
  • Dynamic OD matrix estimation exploiting bluetooth data in urban networkss 

    Barceló Bugeda, Jaime; Montero Mercadé, Lídia; Bullejos, Manuel; Serch, Oriol; Carmona, Carlos (2012)
    Text en actes de congrés
    Accés obert
    Time-Dependent Origin-Destination (OD) matrices are a key input to Dynamic Traffic Models. Microscopic and Mesoscopic traffic simulators are relevant examples of such models, traditionally used to assist in the design ...
  • Fusió de dades multisensorials de trànsit per a incrementar la fiabilitat, obtenir patrons de comportament i ajudar a la presa de decisions 

    Serch Muni, Oriol (Universitat Politècnica de Catalunya, 2014-06)
    Projecte Final de Màster Oficial
    Accés obert
  • IMU/GNSS integration for precise positioning: algorithm implementation and simulation 

    Serrano Jimenez, Ester (Universitat Politècnica de Catalunya, 2016-07-27)
    Treball Final de Grau
    Accés obert
    Realitzat a/amb: Centre Tecnològic de Telecomunicacions de Catalunya (CTTC)
    The Centre Tecnològic de Telecomunicacions de Catalunya (CTTC), is developing a part of a project from the European program H2020 which consists in increase the safety, sustainability, flexibility and efficiency of road ...
  • Model-based control for a three-phase shunt active power filter 

    Guzmán Solà, Ramon; García de Vicuña Muñoz de la Nava, José Luis; Morales López, Javier; Castilla Fernández, Miguel; Miret Tomàs, Jaume (Institute of Electrical and Electronics Engineers (IEEE), 2016-03-10)
    Article
    Accés obert
    This paper presents a robust model-based control in natural frame for a three-phase shunt active power filter. For the proposed control method a linear converter model is deduced. Then, this model is used in a Kalman ...
  • Multivariable ARMA systems and practicable calculations 

    Hannan, E. J. (Universitat Politècnica de Barcelona. Centre de Càlcul, 1984-03)
    Article
    Accés obert
    The representation of ARMA systems in canonical state space is described and the idea of order and the manifold structure of spaces of systems are introduced. Some neighbourhood systems are described and related to other ...
  • Particle filtering estimation for linear and nonlinear state-space models 

    Acosta Argueta, Lesly María (Universitat Politècnica de Catalunya, 2013-11-29)
    Tesi
    Accés obert
    The sequential estimation of the states (filtering) and the corresponding simultaneous estimation of the states and fixed parameters of a dynamic state-space model, being linear or not, is an important probleminmany fields ...
  • Retrieval of boundary layer height from lidar using extended Kalman filter approach, classic methods, and backtrajectory cluster analysis 

    Banks, Robert Franklin; Tiana Alsina, Jordi; Baldasano Recio, José María; Rocadenbosch Burillo, Francisco (International Society for Photo-Optical Instrumentation Engineers (SPIE), 2014)
    Text en actes de congrés
    Accés restringit per política de l'editorial
    This contribution evaluates an approach using an extended Kalman filter (EKF) to estimate the planetary boundary layer height (PBLH) from lidar measurements obtained in the framework of the European Aerosol Research LIdar ...
  • Sliding-mode control for a three-phase shunt active power filter in natural frame 

    Guzmán Solà, Ramon; García de Vicuña Muñoz de la Nava, José Luis; Morales López, Javier; Castilla Fernández, Miguel; Miret Tomàs, Jaume; Torres Martínez, Javier (2015)
    Text en actes de congrés
    Accés restringit per política de l'editorial
    This paper presents an improved variable hysteresis-band current-control in natural frame for a three-phase shunt active power filter. The proposed control algorithm is based on three decoupled sliding-mode controllers ...
  • Synergetic use of lidar and microwave radiometer observations for boundary-layer height detection 

    Saeed, Umar; Rocadenbosch Burillo, Francisco; Crewell, Susanne (Institute of Electrical and Electronics Engineers (IEEE), 2015)
    Text en actes de congrés
    Accés restringit per política de l'editorial
    A synergetic approach for estimation of the nocturnal stable boundarylayer (SBL) height is presented. Aerosol backscatter from a lidar ceilometer and potential temperature from a microwave radiometer (MWR) are combined ...
  • The formulation of structural time series models in discrete and continuous time 

    Harvey, A. C. (Universitat Politècnica de Barcelona. Centre de Càlcul, 1983-12)
    Article
    Accés obert
    This paper sets out an approach for modelling univariate time series, including those in which observations are available on a daily basis. An underlying continuous time model is formulated and it is shown that this model ...
  • Time-Varying Market Beta: Does the estimation methodology matter? 

    Nieto, Belén; Orbe, Susan; Zarraga, Ainoha (Institut d'Estadística de Catalunya, 2014-06-12)
    Article
    Accés obert
    This paper compares the performance of nine time-varying beta estimates taken from three different methodologies never previously compared: least-square estimators including nonparametric weights, GARCH-based estimators ...
  • Vision-based absolute navigation for the Martian landing 

    Martínez Torío, Alexandra (Universitat Politècnica de Catalunya, 2013-12-09)
    Projecte Final de Màster Oficial
    Accés restringit per decisió de l'autor
    Future European missions aspire to bring soil samples from Mars back to Earth. The precise identification of the site from which samples are taken leads to major constraints as to the landing accuracy of the lander. ...