Now showing items 1-20 of 41

    • A comparison of spatial interpolation methods for estimation of average electromagnetic field magnitude 

      Azpúrua Auyanet, Marco Aurelio; Dos Ramos, Karina (2010)
      Article
      Restricted access - publisher's policy
      Several georeferenced measurements of electric field were done in a pilot area of Caracas, Venezuela, to verify that the magnitude of radio frequency electromagnetic fields is below the human exposure limits, recommended ...
    • A measurement system for radiated transient electromagnetic interference based on general purpose instruments 

      Azpúrua Auyanet, Marco Aurelio; Pous Solà, Marc; Silva Martínez, Fernando (Institute of Electrical and Electronics Engineers (IEEE), 2015)
      Conference report
      Open Access
      This paper presents a measurement system intended to be used to assets the radiated electromagnetic interference (EMI) in both time and frequency domains. In order to keep the measurement setup as accessible and practical ...
    • A proposed method for quantifying uncertainty in RF immunity testing due to EUT presence 

      Páez, Eduardo Javier; Tremola, Ciro; Azpúrua Auyanet, Marco Aurelio (2011)
      Article
      Restricted access - publisher's policy
      Throughout the performance of a RF immunity test according IEC 61000-4-3 there are several factors that should be taken into account to ensure the quality and to estimate the uncertainty associated to the results. One ...
    • A review on the drawbacks and enhancement opportunities of the feature selective validation 

      Azpúrua Auyanet, Marco Aurelio; Paez, Eduardo Javier; Rojas Mora, Julio; Ventosa Llopart, Josep Oriol; Silva Martínez, Fernando; Zhang, Gang; Duffy, Alistair P.; Jauregui Telleria, Ricardo Ignacio (2014-08-01)
      Article
      Restricted access - publisher's policy
      The growing application of simulation tools to increasingly complex problems makes the use of validation techniques essential to improve confidence in the veracity of those simulation results. The feature selective validation ...
    • A semi-analytical method for the design of coil-systems for homogeneous magnetostatic field generation 

      Azpúrua Auyanet, Marco Aurelio (2012)
      Article
      Restricted access - publisher's policy
      This paper proposes a simple semi-analytical method for designing coil-systems for homogeneous magnetostatic field generation. The homogeneity of the magnetic field and the average magnitude of the magnetic flux density ...
    • A single antenna ambient noise cancellation method for in-situ radiated EMI measurements in the time-domain 

      Azpúrua Auyanet, Marco Aurelio; Pous Solà, Marc; Silva Martínez, Fernando (2016)
      Conference report
      Open Access
      This paper presents a single antenna ambient noise cancellation method for in-situ radiated emissions measurements performed using an entirely time-domain approach and the sliding window Empirical Mode Decomposition. The ...
    • Alternative conducted immunity tests 

      Cakir, S.; Azpúrua Auyanet, Marco Aurelio; Silva Martínez, Fernando; Cetintas, Mustafa (2016-12-14)
      Article
      Open Access
      Conducted immunity tests are always performed by the use of CDNs in laboratories in accordance with the standard EN61000-4-6. However, it is not always possible to use CDNs because of some limitations. If the EUT (Equipment ...
    • An interpolation method to calibrate electromagnetic probes in semi-anechoic chambers 

      Tremola, Ciro; Azpúrua Auyanet, Marco Aurelio; Páez, Eduardo Javier; Ormeño, D.; Rebolledo, A. (2012)
      Article
      Restricted access - publisher's policy
      Based upon the standard IEEE 1309, a new calibration method for electromagnetic (EM) probes is proposed. The aforementioned method compares the electric field strength measured with the EM probe subject to calibration with ...
    • APD outdoors time-domain measurements for impulsive noise characterization 

      Pous Solà, Marc; Azpúrua Auyanet, Marco Aurelio; Silva Martínez, Fernando (Institute of Electrical and Electronics Engineers (IEEE), 2017)
      Conference report
      Open Access
      A novel measurement and post-processing technique for estimating if impulsive noise is capable of degrading the performance of digital communication systems (DCS) is presented. It is based on the well-known capability of ...
    • Benefits of full time-domain EMI measurements for large fixed installation 

      Pous Solà, Marc; Azpúrua Auyanet, Marco Aurelio; Silva Martínez, Fernando (2016)
      Conference report
      Open Access
      It is difficult to properly evaluate the electromagnetic disturbances generated by large fixed installations because of, i.e., the background noise, unsteady emissions and transient interferences. Those challenging EMC ...
    • Comparison of the GUM and Monte Carlo Methods for the uncertainty estimation in electromagnetic compatibility testing 

      Azpúrua Auyanet, Marco Aurelio; Tremola, Ciro; Páez, Eduardo Javier (2011)
      Article
      Restricted access - publisher's policy
      The rigorous uncertainty estimation in Electromagnetic Compatibility (EMC) testing is a complex task that has been addressed through a simplified approach that typically assumes that all the contributions are uncorrelated ...
    • Decomposition of electromagnetic interferences in the time-domain 

      Azpúrua Auyanet, Marco Aurelio; Pous Solà, Marc; Silva Martínez, Fernando (2016-01-26)
      Article
      Open Access
      Electromagnetic interferences are potentially very complex signals formed by the superposition of transient (broadband) and continuous wave (narrowband) components with significant randomness in both amplitude and phase. ...
    • Dynamic performance evaluation of full time domain EMI measurement systems 

      Azpúrua Auyanet, Marco Aurelio; Pous Solà, Marc; Fernández Chimeno, Mireya; Silva Martínez, Fernando (Institute of Electrical and Electronics Engineers (IEEE), 2018)
      Conference report
      Open Access
      This paper presents the evaluation of the performance of Full Time Domain Electromagnetic Interference measurement systems in terms of the noise figure, the linearity, the dynamic range, the voltage standing wave ratio and ...
    • Electromagnetic characterization of 3D printed antennas employing conductive filament 

      Pous Solà, Marc; Azpúrua Auyanet, Marco Aurelio; Quílez Figuerola, Marcos; Mateu Mateus, Marc; Fernández Chimeno, Mireya; Silva Martínez, Fernando (Institute of Electrical and Electronics Engineers (IEEE), 2020)
      Conference report
      Restricted access - publisher's policy
      This work presents the need to accurately define EM characterization of novel materials like the 3D conductive filament. Although these construction techniques and materials are currently used by the industry, the influence ...
    • Exploratory data analysis on stochastic emissions near-field scanning measurements 

      Oliva Sánchez, José Antonio; Azpúrua Auyanet, Marco Aurelio; Pous Solà, Marc; Silva Martínez, Fernando; Baharuddin, M.H.; Smartt, C.; Thomas, D.W.P (Institute of Electrical and Electronics Engineers (IEEE), 2018)
      Conference report
      Open Access
      Recently, near-field scanning techniques for measuring and analysing stochastic emissions have been theoretically and experimentally studied and they are promising in terms of the characterization and classification radiated ...
    • 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 ...
    • Full time-domain electromagnetic interference measurements and applications 

      Azpúrua Auyanet, Marco Aurelio (Universitat Politècnica de Catalunya, 2018-06-28)
      Doctoral thesis
      Open Access
      This thesis presents a technology that has been called the Full Time-Domain Electromagnetic Interference measurement systems and its applications. Full TDEMI measurement systems are an implementation of an FFT-based receiver ...
    • 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. ...
    • Improving time-domain EMI measurements through digital signal processing 

      Azpúrua Auyanet, Marco Aurelio; Pous Solà, Marc; Cakir, S.; Silva Martínez, Fernando; Cetinta, M. (2015-07)
      Article
      Restricted access - publisher's policy
      This article is intended to provide a set of recommended practices for improving of the Time-Domain EMI measurement systems by means of digital signal processing. We have focused on two major aspects: the optimal configuration ...