Enviaments recents

  • A direct-sequence spread-spectrum super-regenerative receiver 

    Moncunill Geniz, Francesc Xavier; Mas Casals, Orestes Miquel; Palà Schönwälder, Pere (Institute of Electrical and Electronics Engineers (IEEE), 2000)
    Comunicació de congrés
    Accés obert
    Current applications of the super-regenerative receiver use narrowband modulations. In this paper a new architecture that allows incoherent detection of spread-spectrum signals is presented. A pseudorandom code generator ...
  • 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 ...
  • 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 ...
  • A discrete-time equivalent system approach to the periodic response of nonlinear autonomous circuits 

    Palà Schönwälder, Pere; Miró Sans, Joan Maria (1994)
    Text en actes de congrés
    Accés obert
    The problem of computing the steady state response of nonlinear autonomous circuits is solved making use of a discrete-time equivalent system approach. With the application of an s-plane to z-plane mapping, the circuit ...
  • An explicit method for modeling lossy and dispersive transmission lines 

    Palà Schönwälder, Pere; Miró Sans, Joan Maria (Microwave Exhibitions and Publishers, 1993)
    Text en actes de congrés
    Accés obert
    In this paper, an explicit -non iterative- method for modeling lossy and dispersive transmission lines, allowing the inclusion of skin-effect parameters is described. This method, based on multipoint Padé approximation, ...
  • 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 ...
  • CiOpt: a program for optimization of the frequency response of linear circuits 

    Miró Sans, Joan Maria; Palà Schönwälder, Pere (IEEE Computer Society, 1991)
    Text en actes de congrés
    Accés obert
    An interactive personal-computer program for optimizing the frequency response of linear lumped circuits (CiOpt) is presented. CiOpt has proved to be an efficient tool in improving designs where the inclusion of more ...
  • Comunicaciones opticas no guiadas. Fotobalizaje 

    Miró Sans, Joan Maria; Miguel López, José María; Sanz Postils, Margarita (1991)
    Text en actes de congrés
    Accés obert
    After a brief overview of unguided optical communications, this paper presents a system for intelligent photo-buoying of vehicles which has been implementad into a public transport controlling system in a urban traffic ...
  • 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
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    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 ...
  • Programa de simulación de circuitos analógicos lineales y de capacidades conmutadas 

    Miró Sans, Joan M.; Puerta Notario, Antonio; Griñó, J.M.; Sanz Postils, Margarita (Unión Científica Internacional de Radio (URSI), 1986)
    Comunicació de congrés
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