Ara es mostren els items 25-44 de 44

    • La integración de las tecnologías electrónica, informática y comunicaciones: diseño del nuevo grado en ingeniería de sistemas TIC 

      Giralt Mas, Ma. Rosa; Palà Schönwälder, Pere; Escobet Canal, Teresa; Vila Marta, Sebastià; Argelaguet Isanta, María Rosa (2011)
      Comunicació de congrés
      Accés obert
      La adaptación de las titulaciones al EEES ha supuesto un debate organizativo dentro de las universidades. En la EPSEM se decidió que uno de los grados que imparte fuera del ámbito TIC. Después de estudiar las necesidades ...
    • Monitoring and optimal management approaches to reduce water and energy consumption in milk processing processes 

      Quevedo Casín, Joseba Jokin; Puig Cayuela, Vicenç; Escobet Canal, Teresa; Palà Schönwälder, Pere (2017)
      Text en actes de congrés
      Accés obert
      This paper proposes a methodology for the monitoring and optimal management of milk processing processes to reduce water and energy consumption. First, the key variables that should be measured to characterize the water/energy ...
    • Optimal batch scheduling of a multiproduct dairy process using a combined optimization/constraint programming approach 

      Escobet Canal, Teresa; Puig Cayuela, Vicenç; Quevedo Casín, Joseba Jokin; Palà Schönwälder, Pere; Romera Formiguera, Juli; Adelman, Winfried (Pergamon Press, 2019-03-08)
      Article
      Accés obert
      This paper presents the optimal batch scheduling of a multi-product dairy process using an approach that combines optimization and constraint programming techniques. A suitable model describing the subprocesses and production ...
    • 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)
      Comunicació de congrés
      Accés obert
      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 ...
    • Prototipo experimental para ver y oir la dinámica caótica en un circuito 

      Miguel López, José María; Herranz Luis, Jaime; Miró Sans, Joan Maria; Palà Schönwälder, Pere; Sanz Postils, Margarita (1991)
      Text en actes de congrés
      Accés obert
      Chaos, apparently disordered behaviour which is nonetheless deterministic, is a universal phenomenon which occurs in many systems in all areas of science. For it to have place, the equations describing the situation must ...
    • Sensibilidades de primero y segundo orden en circuitos lineales. Aplicación al desarrollo de un optimizador de la respuesta frecuencial 

      Miró Sans, Joan Maria; Palà Schönwälder, Pere (1991)
      Text en actes de congrés
      Accés obert
      Since using the Modified Nodal Approach formulation it is possible to obtain exact first and second arder sensitivities of any linear circuit with an affordable computational cost, first and second arder optimization ...
    • Signal and noise power spectra in superregenerative oscillators 

      Bonet Dalmau, Jordi; Palà Schönwälder, Pere; Moncunill Geniz, Francesc Xavier; Águila López, Francisco del; Giralt Mas, Ma. Rosa (Institute of Electrical and Electronics Engineers (IEEE), 2019)
      Comunicació de congrés
      Accés obert
      This paper presents a method to quantify noise in superregenerative oscillators. A frequency domain technique, originally intended to determine the signal response, can also be used to determine the noise response. This ...
    • SNR measurement of superregenerative oscillators 

      Bonet Dalmau, Jordi; Palà Schönwälder, Pere; Moncunill Geniz, Francesc Xavier (Institute of Electrical and Electronics Engineers (IEEE), 2021)
      Text en actes de congrés
      Accés obert
      In this paper a method to measure the signal-to-noise ratio of superregenerative oscillators is presented. A spectrum analyzer can easily be coupled to a superregenerative oscillator without paying attention to possible ...
    • Stability analysis of periodic solutions in non-linear autonomous circuits: a discrete time approach 

      Miró Sans, Joan Maria; Palà Schönwälder, Pere; Mas Casals, Orestes Miquel (1996-07)
      Article
      Accés restringit per política de l'editorial
      Steady-state methods have been devised to compute periodic wave-forms without having to integrate the autonomous circuit equations until the transients die out. Stability analysis of the computed solutions is the next ...
    • Steady state analysis of Chua's circuit with RLCG transmission line 

      Bonet Dalmau, Jordi; Palà Schönwälder, Pere; Águila López, Francisco del (Institute of Electrical and Electronics Engineers (IEEE), 1999)
      Text en actes de congrés
      Accés obert
      In this paper we present a new technique to compute the steady state response of nonlinear autonomous circuits with RLCG transmission lines. Using multipoint Pade approximants, instead of the commonly used expansions around ...
    • Steady state analysis of class-E amplifier with non-linear capacitor by means of discrete-time techniques 

      Águila López, Francisco del; Palà Schönwälder, Pere; Bonet Dalmau, Jordi; Giralt Mas, Ma. Rosa (The Institute of Electrical and Electronics Engineers, 2000)
      Text en actes de congrés
      Accés obert
      A new method to determine the steady state response of switched nonlinear circuits is proposed. The method is based on a Gear discretization of the circuit equations. Additional samples of the waveform are used to describe ...
    • Sub-nanosecond pulse filtering and amplification through firts-order controlled circuit instability 

      Moncunill Geniz, Francesc Xavier; Palà Schönwälder, Pere; Bonet Dalmau, Jordi; Águila López, Francisco del; Giralt Mas, Ma. Rosa (2009)
      Comunicació de congrés
      Accés obert
      In this paper we investigate how to use controlled circuit instability in the filtering and amplification of narrow pulses. The basic circuit consists of a first-order RC network coupled to a negative resistance controlled ...
    • Super-regenerative receiver for OFDM communication 

      Moncunill Geniz, Francesc Xavier; Bonet Dalmau, Jordi; Águila López, Francisco del; Demirkol, Ilker Seyfettin; Palà Schönwälder, Pere (Institute of Electrical and Electronics Engineers (IEEE), 2022)
      Comunicació de congrés
      Accés obert
      In this paper, we demonstrate the suitability of the super-regenerative receiver in OFDM communication. The wellknown property of super-regenerative oscillators to preserve the amplitude and phase information is exploited ...
    • Super-regenerative receiver wake-up radio solution for 5G New Radio communications 

      Moncunill Geniz, Francesc Xavier; Águila López, Francisco del; Demirkol, Ilker Seyfettin; Bonet Dalmau, Jordi; Palà Schönwälder, Pere (2023-12-14)
      Article
      Accés obert
      Wake-up radio is a promising solution to reduce the energy wasted by mobile devices during an idle state. In this paper, we propose a new wake-up radio solution for 5G mobile devices based on a super-regenerative receiver ...
    • Superregeneration revisited: from principles to current applications 

      Palà Schönwälder, Pere; Bonet Dalmau, Jordi; Águila López, Francisco del; Moncunill Geniz, Francesc Xavier; Giralt Mas, Ma. Rosa (2020-02-01)
      Article
      Accés obert
      Wireless communications play a central role in our modern connected lives; at the same time, they constitute a very broad and deep area of research. The elements that make wireless communications possible are a transmitter, ...
    • A superregenerative QPSK receiver 

      Palà Schönwälder, Pere; Bonet Dalmau, Jordi; Moncunill Geniz, Francesc Xavier; Águila López, Francisco del; Giralt Mas, Ma. Rosa (2014-01)
      Article
      Accés obert
      In this paper we present a description and experimental verification of a superregenerative receiver (SR) for QPSK signals. Exploiting the fact that a conventional SR generates pulses which preserve the input phase ...
    • 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)
      Article
      Accés obert
      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 ...
    • Tecnologías complementarias: dos asignaturas del nuevo grado en ingeniería de sistemas TIC enfocadas a las competencias genéricas 

      Escobet Canal, Teresa; Giralt Mas, Ma. Rosa; Palà Schönwälder, Pere; Vila Marta, Sebastià; Argelaguet Isanta, María Rosa (2011)
      Comunicació de congrés
      Accés obert
      En el marco de la adaptación de las titulaciones al EEES, en la EPSEM se decidió impartir el grado en ingeniería de sistemas TIC. Este nuevo grado tiene por objetivo formar profesionales con un perfil generalista e ...
    • The nonlinear class-E amplifier: a case study of harmonic balance applied to switched circuits 

      Bonet Dalmau, Jordi; Águila López, Francisco del; Moncunill Geniz, Francesc Xavier; Palà Schönwälder, Pere (IEEE Press. Institute of Electrical and Electronics Engineers, 2009-05)
      Text en actes de congrés
      Accés obert
      Nonlinear switched circuits are usually analyzed in the time domain. The use of frequency-domain methods to analyze the steady-state of switched circuits is usually restricted to linear circuits and, although Volterra ...
    • Ultra wideband impulse radio superregenerative reception 

      Moncunill Geniz, Francesc Xavier; Palà Schönwälder, Pere; Bonet Dalmau, Jordi; Águila López, Francisco del; Giralt Mas, Ma. Rosa (Intech, 2011-07-31)
      Capítol de llibre
      Accés obert