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Ara es mostren els items 55-74 de 83

    • 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)
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      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 ...

    • Rapid emission check of photovoltaic installations using time domain measurements 

      Azpúrua Auyanet, Marco Aurelio; Solé-Lloveras, Jordi; Marthinsen, Roger; Silva Martínez, Fernando (2023-12-18)
      Article
      Accés restringit per política de l'editorial
      This article represents a contribution to the Rapid Emission Check of installations project in IEC CISPR Sub Committee A (SC A) Joint Working Group 9 (JWG9). Time domain measurements are used to identify sources and critical ...

    • RFID system evaluation against radiated transient noise 

      Pous Solà, Marc; Fernández Chimeno, Mireya; Silva Martínez, Fernando (2010)
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      In this paper a radiofrequency identification system according to standard ISO/IEC 14443 type-B is evaluated in presence of transient noise. This real time communication system working at 13.56 MHz is interfered in a ...

    • RFID systems in medical environment: EMC issues 

      Fernández Chimeno, Mireya; Silva Martínez, Fernando (2010)
      Comunicació de congrés
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      RFID is a promising technology in the healthcare area in order to improve patient safety and increase efficiency and reduce costs in the daily healthcare work. This paper analyzes the available literature regarding both ...

    • 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)
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      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 ...

    • Rogowski coil sensors for measuring lightning strike currents on mechanical aircraft joints 

      Solé Lloveras, Jordi; Azpúrua Auyanet, Marco Aurelio; Quílez Figuerola, Marcos; Silva Martínez, Fernando (2023-01-10)
      Article
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      The study of currents flowing through the fuselage of an airplane is of vital importance from the standpoint of electromagnetic compatibility due to their potential for causing severe failures on embedded systems. Direct ...

    • Simulación electromagnética FD-TD : una ayuda al diseño en compatibilidad electromagnética 

      Vidal Reigosa, Alex; Anzaldi, Gabriel; Silva Martínez, Fernando (Escola Tècnica Superior d'Enginyers de Telecomunicació de Barcelona, 2003)
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    • SIVA UAV: a case study for the EMC analysis of composite air vehicles 

      Cabello, Miguel R.; Vallina Fernández, Sergio Manuel; Pous Solà, Marc; Pascual, Enrique; Angulo, Luis D.; López, Patricia; Riu Costa, Pere Joan; Gutierrez, Guadalupe G.; Mateos, Daniel; Poyatos, David; Fernández Chimeno, Mireya; Alvarez, Jesus; Pantoja, Mario F.; Añón, Manuel; Silva Martínez, Fernando; Bretones, Amelia R.; Trallero, Rafael; Nuño Fernández, Luis; Escot, David; Martin, Rafael G.; Garcia, Salvador G. (2017-08-01)
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      The increased use of carbon-fiber composites in unmanned aerial vehicles is a challenge for their EMC assessment by numerical solvers. For accurate and reliable simulations, numerical procedures should be tested not only ...

    • 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
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      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, ...

    • Statistical evaluation of measurement accuracy in full time-domain EMI measurement systems 

      Azpúrua Auyanet, Marco Aurelio; Pous Solà, Marc; Silva Martínez, Fernando (Institute of Electrical and Electronics Engineers (IEEE), 2020)
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      FFT-based measuring receivers acquire time-domain data and calculate the spectrum of the interference according to the voltage indication levels of the standard weighting detectors using complex functions and algorithms ...

    • Statistical performance comparison between the FSV and the FS-NMI index 

      Azpúrua Auyanet, Marco Aurelio; Jauregui Telleria, Ricardo Ignacio; Silva Martínez, Fernando; Parra, Xileidys (Institute of Electrical and Electronics Engineers (IEEE), 2014)
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      This paper presents a performance comparison between two validation methods developed specifically for the Computational Electromagnetics purposes: the Feature Selective Validation (FSV) and the Feature Selective Normalized ...

    • Strategies using time-domain measurements for radiated emissions testing in harsh environments 

      Solé Lloveras, Jordi; Azpúrua Auyanet, Marco Aurelio; Yoshioka, Yasutoshi; Silva Martínez, Fernando (2023-08-10)
      Article
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      Performing in-situ radiated emissions measurements, that is, in locations different from a standard test site, can be a challenging task because of the high electromagnetic noise levels in the ambient. A harsh electromagnetic ...

    • Study of transient phenomena with feature selective validation method 

      Jauregui Tellería, Ricardo; Rojas, Julio; Silva Martínez, Fernando (2011)
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      In recent years, computational electromagnetism has had a great development thanks to the computational systems speed increase and their cost reduction. With those improvements the mathematical algorithms are able to work ...

    • Time and frequency domain characterization of switching losses in GaN FETs power converters 

      Azpúrua Auyanet, Marco Aurelio; Pous Solà, Marc; Silva Martínez, Fernando (Institute of Electrical and Electronics Engineers (IEEE), 2022-03)
      Article
      Accés obert
      This work presents a methodology for the time-frequency characterization of the switching losses in Gallium Nitride Field Effect Transistors used in power electronics applications, particularly in DC-DC converters. Typically, ...

    • 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)
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      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 leveling for EMC conducted radiofrequency immunity tests 

      Solé Lloveras, Jordi; Aragon Homar, Marc; Azpúrua Auyanet, Marco Aurelio; Silva Martínez, Fernando (Íñigo Cuiñas Gómez, 2021)
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      Testing the immunity to conducted radiofrequency disturbances, induced by radio-frequency fields, is fundamental within the electromagnetic compatibility assessment of devices having input and/or output cables. This procedure ...

    • Time-domain electromagnetic characterization of reaction wheel for space applications 

      Pous Solà, Marc; Zhao, Dongsheng; Azpúrua Auyanet, Marco Aurelio; Bozhanov, Teodor; Silva Martínez, Fernando; Wolf, Johannes (2023-01-13)
      Article
      Accés obert
      The electromagnetic characterization of reaction wheels is crucial to comply with the demanding ac magnetic field cleanliness requirements of space science missions, thus, preventing interference on sensitive onboard ...

    • 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)
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      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 ...

    • Time-domain just-before-test verification method to detect failures and ensure the measurement accuracy for conducted emissions and immunity tests 

      Pous Solà, Marc; Azpúrua Auyanet, Marco Aurelio; Silva Martínez, Fernando; Çakir, Soydan; Sen, Osman (2019)
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      It is mandatory for EMC test laboratories to apply verification methodologies to ensure that they are performing the tests properly. However, the time-consumption of most of the procedures or its low accuracy causes ...

    • Time-domain multitone impedance measurement system for space applications 

      Pous Solà, Marc; Azpúrua Auyanet, Marco Aurelio; Zhao, Dongsheng; Wolf, Johannes; Silva Martínez, Fernando (Institute of Electrical and Electronics Engineers (IEEE), 2022)
      Comunicació de congrés
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      This paper presents a time-domain methodology to measure the devices' live impedance at the frequency range between 30 Hz and 100 kHz. This measurement is a requirement for some space applications to ensure the stability ...