Now showing items 1-10 of 10

  • Automatic measurements of partial cover factors and yarn diameters in fabrics using image processing 

    Tapias Anton, Montserrat; Rallo Capdevila, Miguel; Escofet Soteras, Jaume (2011-01)
    Article
    Restricted access - publisher's policy
  • Cleaning and measuring tools using digital image processing methods 

    Torres Xirau, Iban (Universitat Politècnica de Catalunya / Fraunhofer-Institut für Produktionsanlagen und Konstruktionstechnik, 2013-07-31)
    Master thesis (pre-Bologna period)
    Open Access
    [ANGLÈS] Many industrial machines use screws and other small tools to fix smaller components that compose the whole structure of the machine. To ensure that these tools withstand the pressures that can be subjected at, a ...
  • Deterministic analysis of the accuracy in FFT hardware architectures 

    Guinart Platero, David (Universitat Politècnica de Catalunya / Linköpings Universitet, 2012-06-07)
    Master thesis (pre-Bologna period)
    Open Access
    [ANGLÈS] This Master Thesis studies the different quantization effects in hardware architecture due to the use of finite word lenght. This master thesis gives a deterministic analysis with relation to the accuracy and ...
  • Generalized formulation of an encryption system based on a joint transform correlator and fractional Fourier transform 

    Vilardy Ortiz, Juan Manuel; Torres, Yezid; Millán Garcia-Varela, M. Sagrario; Pérez Cabré, Elisabet (Institute of Physics (IOP), 2014-12-01)
    Article
    Open Access
    We propose a generalization of the encryption system based on double random phase encoding (DRPE) and a joint transform correlator (JTC), from the Fourier domain to the fractional Fourier domain (FrFD) by using the fractional ...
  • Implementación y análisis de transformadoras de Fourier para protein-docking en cell BE 

    González Alvárez, Cecilia M. (Universitat Politècnica de Catalunya, 2007-06-27)
    Master thesis (pre-Bologna period)
    Open Access
  • Log-periodic optical antennas 

    Pavlov, Radostin Stefanov (Universitat Politècnica de Catalunya, 2011-09-07)
    Master thesis
    Open Access
    English: In recent years optical antennas have been attracting very strong interest due to the unique possibilities they offer for manipulating light on a sub-wavelength scale. Most published work deals with relatively ...
  • Non-linear spectral estimation 

    Lagunas Hernandez, Miguel A. (Institute of Electrical and Electronics Engineers (IEEE), 1987)
    Conference report
    Open Access
    This work describes the use of constraints in variational procedures for spectral analysis. It is reported how the designer in a variational approach for spectral estimation has to select a set of constraints. At the same ...
  • Radix-R FFT and IFFT factorizations for parallel implementation 

    Marti Puig, Pere; Reig Bolano, Ramon; Parisi Baradad, Vicenç (2009)
    Article
    Restricted access - publisher's policy
    Two radix-R regular interconnection pattern families of factorizations for both the FFT and the IFFT -also known as parallel or Pease factorizations- are reformulated and presented. Number R is any power of 2 and N, the ...
  • Rayleigh estimates: performing like SVD 

    Lagunas Hernandez, Miguel A.; Cabrera Beán, Margarita Asuncion (1988)
    Conference report
    Open Access
    This paper describes the structure of the so- called Rayleigh estimates and the features they share with indirect SVD like procedures. The problem of finding procedures of high resolution in spectral estimation is faced ...
  • Simulation of an OFDM system for a Wireless Battery Management System 

    Gaitán Gutiérrez, Fernando (Universitat Politècnica de Catalunya, 2014-11-20)
    Master thesis (pre-Bologna period)
    24 months embargo
    [ANGLÈS] With the aim of innovating a new physical layer that can be used as an alternative to the standard of the Battery Management System (BMS, CAN-Bus), wireless approach proposes a new BMS communication system to ...