Now showing items 22-41 of 106

  • CFAR data fusion center with inhomogeneous receivers 

    Elias Fusté, Antonio; Broquetas Ibars, Antoni (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 1992-01-02)
    Article
    Open Access
    Detection systems with distributed sensors and data fusion are increasingly used by surveillance systems. A system formed by N inhomogeneous constant false alarm rate (CFAR) detectors (cell-averaging (CA) and ordered ...
  • Circular synthetic aperture radar (C-SAR) system for ground based applications 

    Broquetas Ibars, Antoni; Porrata-Dòria i Yagüe, Ramir de; Sagués Piella, Lluís; Fabregas Canovas, Francisco Javier; Jofre Roca, Lluís (IEE-INST ELEC ENG, 1997-05-01)
    Article
    Open Access
    The authors present an SAR system capable of obtaining radar images from measurements carried out with antennas that describe a circular trajectory centred outside the target region. The analytical formulation of the ...
  • Comparative analyses of multi-frequency PSI ground deformation measurements 

    Sabater Cifuentes, José Raúl (Universitat Politècnica de Catalunya, 2012-03-29)
    Master thesis (pre-Bologna period)
    Restricted access - author's decision
    [ANGLÈS] In recent years many new developments have been made in the field of SAR image analysis. The diversity of available SAR imagery allows a wider range of applications to be covered in the domain of risk management ...
  • Comparison of topography- and aperture-dependent motion compensation algorithms for airborne SAR 

    Prats Iraola, Pau; Câmara de Macedo, Karlus A.; Reigber, Andreas; Scheiber, Rolf; Mallorquí Franquet, Jordi Joan (IEEE, 2007-07-31)
    Article
    Open Access
    This letter presents a comparison between three Fourier-based motion compensation (MoCo) algorithms for airborne synthetic aperture radar (SAR) systems. These algorithms circumvent the limitations of conventional MoCo, ...
  • Considerations about antenna pattern measurements of 2-D aperture synthesis radiometers 

    Camps Carmona, Adriano José; Skou, Neils; Torres Torres, Francisco; Corbella Sanahuja, Ignasi; Duffo Ubeda, Núria (IEEE, 2006-04-30)
    Article
    Open Access
    Accurate measurement of the antenna voltage patterns of large-aperture synthesis radiometers is critical in order to achieve good radiometric accuracy, and a very time consuming and expensive task. Measurement requirements ...
  • DA-GLRT burst detection and synchronization based on a chirp-like preamble 

    Rodríguez, E; Lamarca Orozco, M. Meritxell; López Salcedo, José Antonio; Rey Micolau, Francesc; Riba Sagarra, Jaume; Sala Álvarez, José; Vázquez Grau, Gregorio; Villares Piera, Nemesio J.; Jalón, A (2008)
    Conference report
    Restricted access - publisher's policy
    A specific preamble for the tasks of signal detection and synchronization in burst digital communications is presented. The preamble resembles a chirp signal used in RADAR applications. Its main benefit is that it allows ...
  • Desarrollo de una aplicación para informar sobre carreteras usando social networks 

    Álvarez Morales, Ferran (Universitat Politècnica de Catalunya, 2015-04-24)
    Bachelor thesis
    Open Access
    [CASTELLÀ] Desarrollo de una aplicación móvil que informa en tiempo real sobre la localización de radares. La información necesaria se obtiene mediante el análisis de las publicaciones de la red social Twitter.
  • Desenvolupament de codis d'anàlisi de la dispersió electromagnètica deguda a blancs RADAR molt petits 

    Crespí Font, Francisca (Universitat Politècnica de Catalunya, 2010-02-05)
    Bachelor thesis
    Open Access
  • Design and Analysis of Superresolution algorithm and signal separation technique for an OFDM-based MIMO radar 

    Nguyen, Thanh Thuy (Universitat Politècnica de CatalunyaKarlsruher Institut für Technology, 2012-10-31)
    Master thesis
    36 months embargo
    Recently, the concept of MIMO radar has been proposed. MIMO radar has the capability to transmit orthogonal (or incoherent) waveforms at multiple transmit antennas. It offers promising potentials for multipath fading, ...
  • Design of a Chipless Harmonic Radar Temperature Sensor 

    Romeu Gómez, Jordi (Universitat Politècnica de CatalunyaTechnische Universität Darmstadt, 2013-09-10)
    Master thesis (pre-Bologna period)
    [ANGLÈS] Passive chipless wireless sensor tags are used in environments with specific conditions where chips, wires or power supplies cannot be used. Nowadays a huge part of these sensors use Surface Acoustic Wave (SAW) ...
  • Design of a reflected power canceller for single-antenna FMC radars 

    Amézaga Sarries, Adrià (Universitat Politècnica de CatalunyaUniversity of Massachusetts at Amherst. Microwave Sensing Laboratory, 2013-12-10)
    Bachelor thesis
    Open Access
    [ANGLÈS] Frequency Modulated Continuous Wave radars suffer from an undesirable effect called transmitter leakage. The power leak between transmitter and receiver due to the lack isolation impairs reception performance. The ...
  • Design of a Temperature Sensitive Band Pass Filter for a Chipless Harmonic Radar Sensor 

    Romeu Gómez, Jordi (Universitat Politècnica de CatalunyaTechnische Universität Darmstadt, 2013-09-26)
    Master thesis (pre-Bologna period)
    [ANGLÈS] Passive chipless wireless sensor tags are used in environments with specific conditions where chips, wires or power supplies cannot be used. Nowadays a huge part of these sensors use Surface Acoustic Wave (SAW) ...
  • Design, fabrication and measurements of an s-band radar in an airborne platform 

    RuÍz Carregal, Gerard (Universitat Politècnica de Catalunya, 2014-10-24)
    Master thesis (pre-Bologna period)
    Open Access
    [ANGLÈS] The thesis describes the design and fabrication of an S-band radar. Moreover, discusses the results obtained from ground measurements, as well as measurements taken from an airborne platform.
  • Detección de movimiento mediante técnicas radar CW-FM en banda W 

    Vargas González, Daniel (Universitat Politècnica de Catalunya, 2014-03)
    Master thesis (pre-Bologna period)
    Open Access
    [ANGLÈS] Integration of a SAR adquisition system using a FM-CW 94 GHz radar and test the system by different measurement campaigns with the aim of detecting micrometic displacements using a phase analysis of the recived signal
  • Determining building interior structures using compressive sensing 

    Lagunas Targarona, Eva; Amin, Moeness; Ahmad, Fauzia; Nájar Martón, Montserrat (2013-01-22)
    Article
    Open Access
    We consider imaging of the building interior structures using Compressive Sensing (CS) with applications to through-the-wall imaging and urban sensing. We consider a monostatic synthetic aperture radar imaging system ...
  • Development of a radar at 24 GHz for remote sensing applications 

    Blasco Coll, Andreu (Universitat Politècnica de Catalunya, 2014-12-18)
    Bachelor thesis
    Open Access
    This project will examine the capabilities of a radar sensor at 24GHz to measure the vibrations of buildings. The aim of this application, based on the detection of the vibration frequencies of the structure, is to detect ...
  • Development of an object oriented thunderstorm nowcasting system for Barcelona airport 

    Devanthéry Arasa, Núria (Universitat Politècnica de Catalunya, 2010-03-25)
    Master thesis
    Open Access
    The goal of this master thesis is to develop a thunderstorm information system for Barcelona airport. The purpose of the system is to provide information about all the thunderstorms that are near the airport area or ...
  • Digital photogrammetry, GPR and computational analysis of structural damages in a mediaeval bridge 

    Arias, P; Armesto, J; Capua, Daniel di; González Drigo, José Ramón; Lorenzo, H; Pérez Gracia, María de la Vega (Elsevier, 2007-02)
    Article
    Restricted access - publisher's policy
    Traditional architectonic heritage elements are fragile and irreplaceable resources, signs of the ancient ways of life and the history of the modern societies, and essential valuable elements of the own landscape of a ...
  • Diseño y validación de un radar CW-FM a 94 GHz 

    Varela Agrelo, David (Universitat Politècnica de Catalunya, 2013-06-20)
    Master thesis (pre-Bologna period)
    Open Access
    94 GHz CW-FM radar design and mesurement campaign validation.
  • DOA estimation of two targets using beamformer based methods with application to automotive radar 

    Cordero Hernandez, Javier (Universitat Politècnica de Catalunya, 2011-09-28)
    Master thesis (pre-Bologna period)
    Open Access
    English: Direction-of-arrival (DOA) estimation of two targets plays an important role in automotive radar. Two cases are distinguished: when the targets are closely spaced and the conventional beamformer is not able to ...