• An interdisciplinary approach to motivate students to learn digital systems and computing engineering 

      Tarres Puertas, Marta Isabel; López Riera, Alexis; Palà Schönwälder, Pere; Vila Marta, Sebastià (Tempus Publications, 2019-03-01)
      Artículo
      Acceso restringido por política de la editorial
      We report a new learning approach in collaborative learning-by doing, real-world team-based project in two ICT courses: DigitalSystems and Computing Engineering, conducted at Universitat Polite`cnica de Catalunya. Data ...
    • Aplicaciones avanzadas del principio superregenerativo a comunicaciones por radiofrecuencia 

      López Riera, Alexis (Universitat Politècnica de Catalunya, 2017-07-18)
      Tesis
      Acceso abierto
      There exists today an increasing demand for wireless devices which require low cost and minimum power consumption radiofrequency front-ends. Precisely, these are two remarkable characteristics of the superregenerative ...
    • Design and performance comparison of a superregenerative MPSK transceiver 

      Bonet Dalmau, Jordi; López Riera, Alexis; Palà Schönwälder, Pere; Moncunill Geniz, Francesc Xavier; Babí Oller, Albert (2015)
      Comunicación de congreso
      Acceso abierto
      In this paper we present a superregenerative transceiver able to switch among BPSK, QPSK and 8PSK modulations. An HF-band proof-of-concept transceiver is implemented on an FPGA with a minimum of analog circuitry. The ...
    • Disseny i implementació d'un transceptor super-regeneratiu QPSK 

      López Riera, Alexis (Universitat Politècnica de Catalunya, 2013-07-05)
      Projecte Final de Màster Oficial
      Acceso abierto
      [ANGLÈS] This project consists on the design and the implementation of a radio frequency transceiver. A transceiver is a device which is able to be a transmitter and a receiver and, therefore, it is suitable for commuting ...
    • Joint symbol and chip synchronization for a burst-mode-communication superregenerative MSK receiver 

      López Riera, Alexis; Águila López, Francisco del; Palà Schönwälder, Pere; Bonet Dalmau, Jordi; Giralt Mas, Ma. Rosa; Moncunill Geniz, Francesc Xavier (2017-01-05)
      Artículo
      Acceso abierto
      In this paper we describe a superregenerative (SR) MSK receiver able to operate in a burst-mode framework where synchronization is required for each packet. The receiver is based on an SR oscillator which provides samples ...
    • A proof-of-concept superregenerative QPSK transceiver 

      López Riera, Alexis; Palà Schönwälder, Pere; Bonet Dalmau, Jordi; Moncunill Geniz, Francesc Xavier; Águila López, Francisco del; Giralt Mas, Ma. Rosa (2014)
      Comunicación de congreso
      Acceso abierto
      In this paper we present a description and experimental verification of an HF-band proof-of-concept superregenerative transceiver for QPSK signals. We describe a simple implementation of an all-digital, FPGA-based, QPSK ...
    • Superregenerative reception of narrowband FSK modulations 

      Palà Schönwälder, Pere; Bonet Dalmau, Jordi; López Riera, Alexis; Moncunill Geniz, Francesc Xavier; Águila López, Francisco del; Giralt Mas, Ma. Rosa (2015-03-01)
      Artículo
      Acceso abierto
      In this paper we investigate the possibilities of narrowband FSK detection using a superregenerative (SR) receiver. Previous SR FM demodulation techniques rely on detecting the amplitude variations caused by the different ...