Now showing items 1-20 of 31

    • A language for expressing fuzzy temporal rules 

      Cariñena Amigo, Purificación; Bugarín Diz, Alberto José; Mucientes, Manuel; Barro Ameneiro, D. Senén (Universitat Politècnica de Catalunya. Secció de Matemàtiques i Informàtica, 2000)
      Article
      Open Access
      This paper deals with the formal description of what we call Fuzzy Temporal Propositions: propositions with explicitly expressed information of a temporal type. The set of syntactic rules that make a grammar up for defining ...
    • Active damping of a DC network with a constant power load: an adaptive observer-based design 

      Machado, Juan; Ortega, Romeo; Astolfi, Alessandro; Arocas Pérez, José; Pyrkin, Anton; Bobtsov, Alexey; Griñó Cubero, Robert (Institute of Electrical and Electronics Engineers (IEEE), 2019)
      Conference report
      Open Access
      This paper proposes a nonlinear, output feedback, adaptive controller to increase the stability margin of a direct-current (DC), small-scale, electrical network containing an unknown constant power load. Due to their ...
    • Actuator fault-tolerant control based on set separation 

      Ocampo-Martínez, Carlos; Doná, José A. de; Serón, María (2008)
      External research report
      Open Access
      In this report an actuator fault-tolerant control (FTC) strategy based on set separation is presented. The proposed scheme employs a bank of observers which match the different fault situations that can occur in the plant. ...
    • Adaptive Compensation Strategy For The Tracking/Rejection of Signals with Time-Varying Frequency in Digital Repetitive Control Systems 

      Ramos Fuentes, Germán Andrés; Olm Miras, Josep Maria; Costa Castelló, Ramon (2009-09)
      Conference report
      Open Access
      Digital repetitive control is a technique which al- lows to track periodic references and/or reject peri- odic disturbances. Repetitive controllers are usually de- signed assuming a fixed frequency for the signals to ...
    • Adaptive generation of multilingual questions and answers from web content 

      Gatius Vila, Marta (Institute of Electrical and Electronics Engineers (IEEE), 2015)
      Conference report
      Open Access
      This article describes the adaptive generation of questions and answers from web content to assist the user when searching for information. The approach proposed integrates user models, domain-restricted knowledge ...
    • Adaptive motion planning for a mobile robot 

      Gifre Oliveras, Clara (Universitat Politècnica de Catalunya / University of Oulu, 2012)
      Master thesis (pre-Bologna period)
      Open Access
      Historically, trapezoidal velocity profiles have been widely used to control engines. Nevertheless, the evolution of robots and their uses has led to the need of using smoother profiles, due to the demand of high precision ...
    • Adaptive nonlinear guidance law using neural networks applied to a quadrotor 

      Rubí Perelló, Bartomeu; Morcego Seix, Bernardo; Pérez Magrané, Ramon (2019)
      Conference report
      Open Access
      The NonLinear Guidance Law (NLGL) is a geometric algorithm commonly employed to solve the path following problem on different unmanned vehicles. NLGL is simple (does no depend on the model of the vehicle), effective and ...
    • An Adaptive Predictive control scheme with dynamic Hysteresis Modulation applied to a DC-DC buck converter 

      Ponce de León Puig, Nubia Ilia; Bozalakov, Dimitar; Acho Zuppa, Leonardo; Vandevelde, Lieven; Rodellar Benedé, José (2020-05-18)
      Article
      Restricted access - publisher's policy
      This article proposes a recent Adaptive Predictive (AP) control technique applied to a DC-DC buck converter. This converter topology has a wide range of applications in the current electronic and electrical systems that ...
    • Atenuación de perturbaciones periódicas mediante control MRAC con síntesis de controlador mínima 

      Larco Barros, Ciro Mauricio; Costa Castelló, Ramon; Olm Miras, Josep Maria (2016)
      Conference report
      Restricted access - publisher's policy
      El seguimiento/rechazo de perturbaciones periódicas en sistemas lineales es factible utilizando controladores basados en el principio del modelo interno. Sin embargo, cuando la frecuencia de la señal a seguir/rechazar es ...
    • Bilateral Teleoperation of Cooperative Manipulators 

      Aldana, Carlos; Basañez Villaluenga, Luis (2012)
      Conference report
      Restricted access - publisher's policy
      This paper presents an adaptive controller for the bilateral teleoperation of a system composed by a single local manipulator and multiple cooperative remote manipulators handling a common object. First, the nonlinear ...
    • Characterization, development and experimental validation of a dynamic model of an open cathode PEM fuel cell 

      Strahl, Stephan; Husar, Attila Peter; Serra, Maria (2010)
      Conference report
      Open Access
      Water distribution in a fuel cell affects performance and durability, thus fundamental understanding of water transport mechanisms are imperative and can be strongly influenced through proper control strategies. A ...
    • Control Actiu en AFDX i Modelització d'ARINC 653 

      Ruiz De Azúa Ortega, Juan Adrián (Universitat Politècnica de Catalunya, 2015-10)
      Master thesis (pre-Bologna period)
      Open Access
      Covenantee:   Institut Supérieur de l'Aéronautique et de l'Espace
      The presented work is oriented on explain the experience of the investigation performed on the embedded systems field. Concretely, the investigation is composed of two standards: ARINC 664 and ARINC 653. The investigation ...
    • Control Adaptativo por Modelo de Referencia con Síntesis de Controlador Mínima 

      Olm Miras, Josep Maria (2012)
      Conference report
      Open Access
      En este trabajo se revisa la técnica de control adaptativo por modelo de referencia con síntesis de controlador mínima y se relacionan las diferentes extensiones del método que se encuentran en la literatura especializada.
    • Control adaptativo por modelo de referencia para un inversor basado en LCL con Síntesis de Controlador Mínima 

      Larco Barros, Ciro Mauricio; Costa Castelló, Ramon; Olm Miras, Josep Maria (Comité Español de Automática (CEA-IFAC), 2016)
      Conference lecture
      Restricted access - publisher's policy
      Un Control Adaptativo por Modelo de Referencia MRAC con Síntesis de Controlador Mínima MCS, es desarrollado con el objetivo de controlar un Inversor monofásico basado en un Filtro LCL conectado a la Red Eléctrica y adaptar ...
    • Deformed fuzzy automata for the text error correction problem 

      Echanobe Arias, Francisco Javier; Garitagoitia Padrones, José Ramón; González de Mendívil, José Ramón; Astrain Escola, José Javier (Universitat Politècnica de Catalunya. Secció de Matemàtiques i Informàtica, 2000)
      Article
      Open Access
      A fuzzy method for the text error correction problem is introduced. The method is able to handle insert, delete and substitution errors. Moreover, it uses the measurement level output that an Isolated Character Classifier ...
    • Design and Analysis Strategies for Digital Repetitive Control Systems with Time-Varying Reference/Disturbance Period 

      Costa Castelló, Ramon; Olm Miras, Josep Maria; Ramos Fuentes, Germán Andrés (2009-12)
      Conference report
      Open Access
      This article introduces and analyzes the performance features of different design schemes for digital repetitive control systems subject to references/disturbances that exhibit non-uniform frequency. Aiming for the ...
    • Design of an adaptive brake pressure controller for the antilock braking system 

      Torres Sabaté, Roger (Universitat Politècnica de Catalunya / Technische Universiteit Delft, 2013)
      UPC Master thesis
      Restricted access - author's decision
      In the past few decades, the introduction of electronics in motor vehicles has marked its development. At the beginning, electronic systems were used to control the engine (electronic fuel-injection systems). From that ...
    • Distributed multi-target tracking in a wireless sensor network using diffusion strategies and adaptive combiners 

      Anguera-Peris, Jaume (Universitat Politècnica de Catalunya, 2016-09)
      Bachelor thesis
      Restricted access - author's decision
      Covenantee:   Northeastern University
      Las redes de sensores inalámbricos se han ido usando cada vez más en los últimos años debido a su capacidad de observar el entorno, procesar datos y tomar decisiones. Estas características han ganado importancia en el ...
    • Evolutionaty training for dynamical recurrent neural networks: an application in finantial time series prediction 

      Delgado Calvo-Flores, Miguel; Pegalajar Jiménez, Mª Carmen; Pegalajar Cuéllar, Manuel (Universitat Politècnica de Catalunya. Secció de Matemàtiques i Informàtica, 2006)
      Article
      Open Access
      Theoretical and experimental studies have shown that traditional training algorithms for Dynamical Recurrent Neural Networks may suffer of local optima solutions, due to the error propagation across the recurrence. In the ...
    • Experimental validation of a continuous-time MCSI algorithm with bounded adaptive gains 

      Montanaro, Umberto; Costa Castelló, Ramon; Olm Miras, Josep Maria; Larco Barros, Ciro (2019-08-01)
      Article
      Restricted access - publisher's policy
      Model reference adaptive control algorithms with minimal controller synthesis have proven to be an effective solution to tame the behaviour of linear systems subject to unknown or time-varying parameters, unmodelled dynamics ...