Browsing by Subject "Interferència electromagnètica"

Now showing items 21-40 of 46

    • Electromagnetic interference prediction in an in-house power-line 

      Samso, Margarita; Ribó, Miquel; Sanchez, Albert-Miquel; Regué, J.R.; Aragon Homar, Marc; Silva Martínez, Fernando (IEEE, 2012)
      Conference report
      Open Access
      Abstract —In this paper a new methodology for the prediction of the conducted-emission propagation in an in-house power- line network is presented. This methodology is based on the modal S -parameter characterization ...

    • EMC testing of electricity meters using real-world and artificial current waveforms 

      Van Den Brom, H.E.; ten Have, Bas; Hartman, Tom; Azpúrua Auyanet, Marco Aurelio; Pous Solà, Marc; Silva Martínez, Fernando; Leferink, F.; van Leeuwen, Ronald; Marais, Zander; Kok, Gertjan J. P.; van Veghel, Marijn G. A.; Kolevatov, Ilia; Malmbekk, Helge (2021)
      Article
      Open Access
      In 2015, the energy measurement of some static electricity meters was found to be sensitive to specific conducted electromagnetic disturbances with very fast current changes caused by highly nonlinear loads, leading to ...

    • Enhanced electromagnetic interference shielding effectiveness of polycarbonate/graphene nanocomposites foamed via 1-step supercritical carbon dioxide process 

      Gedler, Gabriel; Antunes, Marcelo de Sousa Pais; Velasco Perero, José Ignacio; Ozisik, Rahmi (2016-01)
      Article
      Open Access
      The dielectric and electromagnetic interference (EMI) shielding properties of polycarbonate/graphene nanocomposites foamed using supercritical carbon dioxide were studied as a function of their cellular and compositemorphology. ...

    • Estudio e implementación de nuevas técnicas de modulación para la reducción de perturbaciones EMI en convertidores matriciales 

      Espina Masramon, Jordi (Universitat Politècnica de Catalunya, 2012-11-07)
      Doctoral thesis
      Open Access
      El procesamiento de la energía mediante convertidores electrónicos conmutados ha tomado una relevancia notable durante la última década, y presumiblemente será uno de los campos de la ingeniería con mayor proyección ...

    • Fast and automated verification of multi-channel full time-domain EMI measurement systems 

      Azpúrua Auyanet, Marco Aurelio; Pous Solà, Marc; Silva Martínez, Fernando; Oliva Sánchez, José Antonio (Institute of Electrical and Electronics Engineers (IEEE), 2017)
      Conference report
      Open Access
      Recently, concern has been raised with regard to the adequacy of current verification practices carried out in electromagnetic compatibility (EMC) testing laboratories. Bridging the gap in the scope and reliability of the ...

    • Full Time Domain EMI Measurement system applied to Railway emissions according to IEC 62236-3-1/EN 50121-3-1 standards 

      Pous Solà, Marc; Azpúrua Auyanet, Marco Aurelio; Oliva Sánchez, José Antonio; Aragon Homar, Marc; González García, Iván; Silva Martínez, Fernando (Institute of Electrical and Electronics Engineers (IEEE), 2018)
      Conference lecture
      Open Access
      This paper studies the advantages of applying time-domain based instrumentation to conduct electromagnetic interference emissions from rolling-stock. In IEC 62236-3-1 or EN 50121-3-1 standards, it is mandatory to measure ...

    • Immunity of power line communications (PLC) in disturbed networks 

      Vallbe, Bernat; Balcells Sendra, Josep; Bogónez Franco, Francisco; Mata Diaz, Jorge; Gago Barrio, Javier (2011)
      Conference report
      Open Access
      This paper presents an analysis of electromagnetic immunity of energy metering devices, using broadband power line communications (PLC) in low voltage (LV) supply networks with high levels of disturbance. Several tests ...

    • Improved electromagnetic compatibility standards for the interconnected wireless world 

      Pous Solà, Marc; Azpúrua Auyanet, Marco Aurelio; Silva Martínez, Fernando (2019)
      Conference report
      Open Access
      The future is wireless, a world where everything is interconnected. However, the current standards for ensuring the electromagnetic compatibility (EMC) and the coexistence of such wireless systems urge for a major update. ...

    • Interference Impact in WLAN Performance Evaluation 

      Serra Perramon, Enric (Universitat Politècnica de Catalunya, 2017-10-19)
      Bachelor thesis
      Open Access
      Covenantee:   Technische Universität Wien
      The main objective of this document is to develop a model and study the impact of the interference produced by microwave ovens into the widely deployed Wi-Fi networks in residential places. We study the interference of a ...

    • Interleaving and switching pattern modulation to conducted EMI reduction 

      Mon González, Juan; González Díez, David; Gago Barrio, Javier; Balcells Sendra, Josep; Bogónez Franco, Francisco (2012)
      Conference report
      Open Access
      This paper explores new techniques to reduce the conducted EMI generated by switched power converters operating in multiconverter arrangement. These techniques are based in the combined application of interleaving and ...

    • Measurement and evaluation techniques to estimate the degradation produced by the radiated transients interference to the GSM system 

      Pous Solà, Marc; Azpúrua Auyanet, Marco Aurelio; Silva Martínez, Fernando (2015-12)
      Article
      Open Access

    • Numerical assessment in aeronautics for electromagnetic environmental effects 

      Ruiz-Cabello Nuñez, Miguel David; Fernández Romero, Sergio; Pous Solà, Marc; Silva Martínez, Fernando; Fernández Chimeno, Mireya; Riu Costa, Pere Joan; Jauregui Telleria, Ricardo Ignacio (2018-01-01)
      Part of book or chapter of book
      Restricted access - publisher's policy
      Electromagnetic Compatibility for Space Systems Design is a critical scholarly resource that examines the applications of electromagnetic compatibility and electromagnetic interference in the space industry. Featuring ...

    • On the performance of LTE UL power control in realistic conditions 

      Lema Rosas, María Ángel; García Lozano, Mario; Ruiz Boqué, Sílvia; Olmos Bonafé, Juan José (Springer, 2013-05-07)
      Conference report
      Restricted access - publisher's policy
      This paper deals with the interference control in the uplink (UL) of Long Term Evolution (LTE) systems. Although the multiple access technique allows an almost null intra-cell interference, the system is still sensitive ...

    • Radiated transient interferences measurement procedure to evaluate digital communication systems 

      Pous Solà, Marc; Azpúrua Auyanet, Marco Aurelio; Silva Martínez, Fernando (Institute of Electrical and Electronics Engineers (IEEE), 2015)
      Conference report
      Restricted access - publisher's policy
      In this paper, a measurement procedure to capture properly the electromagnetic fields generated by radiated transient interferences is described. Measuring this type of impulsive noise out of the measurements defined at ...

    • Reduction of EMI by Combining Interleaving and Modulation Techniques in Multiconverter Topology 

      Mon González, Juan; Gago Barrio, Javier; González Díez, David; Balcells Sendra, Josep; Fernández García, Raúl; Gil Galí, Ignacio (2009)
      Conference report
      Open Access
      In this paper an evaluation of different modulations techniques that combine switching frequency modulation and interleaving is presented. The objective of these modulations is to cancel certain harmonics of EMI and to ...

    • Robust extreme value estimation for full time-domain EMI measurements 

      Azpúrua Auyanet, Marco Aurelio; Pous Solà, Marc; Silva Martínez, Fernando (Institute of Electrical and Electronics Engineers (IEEE), 2017)
      Conference report
      Open Access
      A robust approach for estimating the expected maximum levels of radiofrequency electromagnetic emissions is proposed. The expected maximum peak value is intended to provide a statistical approximation for the worst case ...

    • Sistema de gestió d'interferències per a xarxes LTE-A amb desplegament de femtocel·les 

      Molina Pena, Marc (Universitat Politècnica de Catalunya, 2012-07-17)
      Master thesis (pre-Bologna period)
      Open Access
      [ANGLÈS] Femtocells are low-power cellular base stations designed to serve homes, businesses or other scenarios with low coverage needs. These stations reuse the same frequency bands assigned to the outer 4G network in ...

    • Specifying the Waveforms for the Calibration of CISPR 16-1-1 Measuring Receivers 

      Azpúrua Auyanet, Marco Aurelio; Pous Solà, Marc; Silva Martínez, Fernando (2019-07-02)
      Article
      Open Access
      Ensuring the measuring receiver's compliance with the specifications given in CISPR 16-1-1 is mandatory. This is achieved through traceable calibration of the instrument regarding its standard requirements. Incidentally, ...

    • Time domain double-loaded electromagnetic field probe applied to unmanned air vehicles 

      Pous Solà, Marc; Fernández Romero, Sergio; Añón, Manuel; Cabello, Miguel R.; Angulo, Luis D.; Silva Martínez, Fernando (Institute of Electrical and Electronics Engineers (IEEE), 2018)
      Conference report
      Open Access
      In this study, measurements inside the fuselage of an unmanned air vehicle (UAV) are conducted using a novel double-loaded loop probe. The characterization and evaluation of electromagnetic interference (EMI) within VAVs ...

    • Time-domain electromagnetic interference measurement system for intermittent disturbances 

      Costa Godo, Gerard; Pous Solà, Marc; Atienza Picola, Andreu; Silva Martínez, Fernando (Institute of Electrical and Electronics Engineers (IEEE), 2014)
      Conference report
      Restricted access - publisher's policy
      In Electromagnetic Compatibility emission measurements, a common problem takes place when equipment producing intermittent disturbances are measured according to standard procedures. In many cases, it is impossible to ...