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Ara es mostren els items 1-20 de 27

    • A novel algorithm for fast BCG cycle extraction in ambulatory scenarios 

      Gómez Clapers, Joan; Casanella Alonso, Ramón; Pallàs-Areny, Ramon (2016)
      Comunicació de congrés
      Accés restringit per política de l'editorial
      A novel algorithm JDet for ballistocardiogram (BCG) cycle extraction is presented that is intended for the fast generation of ensemble averages in ambulatory scenarios where the ECG signal is not available. First, the ...

    • A novel method to obtain proximal plethysmographic information from distal measurements using the impedance plethysmogram 

      Gómez Clapers, Joan; Casanella Alonso, Ramón; Pallàs-Areny, Ramon (University of Oslo, 2015-12-23)
      Article
      Accés obert
      We present a novel method to detect proximal volume changes based on the impedance plethysmogram (IPG) measured from limb to limb with two electrode pairs symmetrically placed at distal areas of the upper or the lower ...

    • An Easy-to-use hand-to-hand impedance-based sensor to obtain carotid pulse arrival time 

      Hernández Urrea, Marc; Casanella Alonso, Ramón; Casas Piedrafita, Óscar; Javierre Garcés, Casimiro (2023-03-01)
      Article
      Accés obert
      Pulse arrival times (PATs) are time intervals between the electrocardiogram (ECG) and an arterial pulse wave (APW) widely used to obtain cuffless blood pressure (BP). Although some distal APWs can be easily measured using, ...

    • Ballistocardiography and Seismocardiography: A Review of Recent Advances 

      Inan, Omer T; Migeotte, Pierre-François; Park, Kwang-Suk; Etemadi, Mozziyar; Tavakolian, Kouhyar; Casanella Alonso, Ramón; Zanetti, John; Tank, Jens; Funtova, Irina; Prisk, G. Kim; Di Rienzo, Marco (2015-07-01)
      Article
      Accés obert
      In the past decade, there has been a resurgence in the field of unobtrusive cardiomechanical assessment, through advancing methods for measuring and interpreting ballistocardiogram (BCG) and seismocardiogram (SCG) signals. ...

    • Direct pulse transit time measurement from an electronic weighing scale 

      Gómez Clapers, Joan; Casanella Alonso, Ramón; Pallàs-Areny, Ramon (2016)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      A novel method to measure Pulse Transit Time (PTT) from the force sensors of a modified electronic weighing scale is presented. The method relies on the relation between PTT and the interval between I and J waves of the ...

    • ELECTRO: Examen FQ: primavera 2019 

      Casanella Alonso, Ramón (Universitat Politècnica de Catalunya, 2019-06-10)
      Examen
      Accés restringit a la comunitat UPC

    • ELECTRO: Examen MQ: primavera 2019 

      Casanella Alonso, Ramón (Universitat Politècnica de Catalunya, 2019-04-01)
      Examen
      Accés restringit a la comunitat UPC

    • ELECTRÒNICA (Examen final, 1r quadrimestre) 

      Casanella Alonso, Ramón (Universitat Politècnica de Catalunya, 2023-01-23)
      Examen
      Accés restringit per decisió de l'autor

    • ELECTRÒNICA (Examen parcial, 1r quadrimestre) 

      Casanella Alonso, Ramón (Universitat Politècnica de Catalunya, 2022-11-02)
      Examen
      Accés restringit per decisió de l'autor

    • Examen final 

      Casanella Alonso, Ramón (Universitat Politècnica de Catalunya, 2018-04-30)
      Examen
      Accés restringit a la comunitat UPC

    • Examen final 

      Casanella Alonso, Ramón (Universitat Politècnica de Catalunya, 2019-01-15)
      Examen
      Accés restringit a la comunitat UPC

    • Examen MQ 

      Casanella Alonso, Ramón (Universitat Politècnica de Catalunya, 2018-11-05)
      Examen
      Accés restringit a la comunitat UPC

    • Examen MQ 

      Casanella Alonso, Ramón (Universitat Politècnica de Catalunya, 2018-03-15)
      Examen
      Accés restringit a la comunitat UPC

    • Heart and respiratory rate detection on a bathroom scale based on the ballistocardiogram and the continuous wavelet transform 

      Gilaberte Elvira, Sonia; Gómez Clapers, Joan; Casanella Alonso, Ramón; Pallàs-Areny, Ramon (2010)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      Ballistocardiography is a non-invasive technique that yields information about the cardiovascular system that is not available in other external signals such as the electrocardiogram (ECG). In the last years, several ...

    • Impact of the mechanical interface on BCG signals obtained from electronic weighing scales 

      Casanella Alonso, Ramón; Gómez Clapers, Joan; Hernández Urrea, Marc; Pallàs-Areny, Ramon (2016)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      This work analyzes the reproducibility of the BCG obtained from different weighing scales. First, the natural frequency of three commercial bathroom scales has been characterized by an impulse excitation test. Second, the ...

    • J wave detection algorithm of the BCG in chair and bed using continuous spline wavelet transform 

      Flores Nuñez, Laura; García Limón, José Alberto; Martínez Suárez, Frank; Casanella Alonso, Ramón; Alvarado Serrano, Carlos (Institute of Electrical and Electronics Engineers (IEEE), 2022)
      Comunicació de congrés
      Accés obert
      This study presents an algorithm for unsupervised beat-to-beat detection of the J-wave of the ballistocardiogram (BCG) in records of both lying (bed) and seated (chair) persons. The algorithm is based on the continuous ...

    • Method and apparatus for obtaining cardiovascular information by measuring between two extremities 

      Pallàs-Areny, Ramon; Casanella Alonso, Ramón; Gómez Clapers, Joan (2014-06-04)
      Report de recerca
      Accés obert
      In this patent of invention there are described a method and an apparatus for obtaining information on the cardiovascular system beat by beat and continuously which are based exclusively on measurements between two limbs ...

    • Multi-signal bathroom scale to assess long-term trends in cardiovascular parameters 

      Gómez Clapers, Joan; Casanella Alonso, Ramón; Pallàs-Areny, Ramon (IEEE, 2012)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      This paper describes the circuits and signal processing techniques that convert an electronic bathroom scale intended for bioimpedance analysis (BIA) into a compact system to acquire the electrocardiogram (ECG), the ...

    • Obtención de parámetros cardiovasculares en una báscula electrónica doméstica 

      Gómez Clapers, Joan; Casanella Alonso, Ramón; Pallàs-Areny, Ramon (2012)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      Se presenta un nuevo sistema para obtener parámetros cardiovasculares de forma sencilla y rápida, apto para el uso en entornos extrahospitalarios. Se basa en una báscula electrónica doméstica modificada a la que se ha ...

    • Obtención robusta de la frecuencia cardiaca en una báscula electrónica domestica 

      Gilaberte Elvira, Sonia; Casanella Alonso, Ramón; Pallàs-Areny, Ramon (2009-11-18)
      Comunicació de congrés
      Accés restringit per acord de confidencialitat