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    • El Radar : de dónde viene y hacia dónde va 

      Broquetas Ibars, Antoni (Escola Tècnica Superior d'Enginyers de Telecomunicació de Barcelona, 1994)
      Article
      Accés obert

    • Radar biestàtic sincronitzat per Hitchhiking 

      Pous i Sabadí, Carles; Aguasca Solé, Alberto; Elias Fusté, Antoni; Broquetas Ibars, Antoni (Escola Tècnica Superior d'Enginyers de Telecomunicació de Barcelona, 1993)
      Article
      Accés obert

    • Radiometric and spatial resolution constraints in millimeter-mave close-range passive screener systems 

      Nova, Enrique; Romeu Robert, Jordi; Torres Torres, Francisco; Pablos Hernández, Miriam; Riera, Jose Manuel; Broquetas Ibars, Antoni; Jofre Roca, Lluís (Institute of Electrical and Electronics Engineers (IEEE), 2013-04)
      Article
      Accés restringit per política de l'editorial
      This paper presents a comparative study of the radiometric sensitivity and spatial resolution of three near-field (NF) passive screener systems: real aperture, 1-D synthetic aperture (SA), and 2-D SA radiometers are compared. ...

    • Real-time lane classification and accident detection for safer micromobility 

      Morros Rubió, Josep Ramon; Broquetas Ibars, Antoni; Mateo i Remacha, Alex; Puig Rabat, Jordi; Davins Jovells, Manel (2023)
      Comunicació de congrés
      Accés restringit per política de l'editorial
      The lack of knowledge of the micromobility regulations by e-scooter users is an important factor behind some of the accidents involving these vehicles. We present two modules that can increase the safety of the users and ...

    • Receptor biestático sin enlace dedicado con el transmisor 

      Aguasca Solé, Alberto; Broquetas Ibars, Antoni; Elias Fusté, Antoni (Unión Científica Internacional de Radio (URSI), 1990)
      Text en actes de congrés
      Accés obert
      This paper presents an introduction to the study and development of a new concept of Bistatic Radar Receiver, which eliminates any kind of direct microwave or optical fiber link between them. It is based on discret phase-lock ...

    • Reconstrucción de la reflectividad de blancos radar 

      Broquetas Ibars, Antoni; Rius Casals, Juan Manuel; Fabregas Canovas, Francisco Javier; Galmes, S; Jofre Roca, Lluís (Unión Científica Internacional de Radio (URSI), 1989)
      Text en actes de congrés
      Accés obert
      Processing radar cross section data is possible to image sorne properties of a target. The paper presents two radar imaging algorithms allowing the reconstruction of reflectivi ty distribution of the target or i ts ...

    • Reconstrucción imágenes SAR 

      Broquetas Ibars, Antoni (1991)
      Text en actes de congrés
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      A Synthetic Aperture Radar (SAR) technique using a stepped frequency signal has been evaluated by numerical simulations and experimentally. Some reconstructed images obtained in anechoic chamber at K band are presented.

    • Remote bistatic receiver synchronization using DLL techniques 

      Aguasca Solé, Alberto; Broquetas Ibars, Antoni; Fernández de Muniain Comajuncosa, Javier (Institute of Electrical and Electronics Engineers (IEEE), 1992)
      Text en actes de congrés
      Accés obert
      Pulse to pulse staggering in the pulse reference interval (PRI), usually used to increase the radar unambiguous range and MTI blind speeds, complicates notably the synchronization of the pulsed waveform. A free running ...

    • Results on spatial-temporal atmospheric phase screen retrieval from long-term GEOSAR acquisition 

      Ruiz Rodon, Josep; Broquetas Ibars, Antoni; Makhoul Varona, Eduardo; Monti Guarnieri, Andrea; Rocca, Fabbio (Institute of Electrical and Electronics Engineers (IEEE), 2012)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      In this paper, a high integration gain GEOSAR mission for Earth imaging is presented. The spatial-temporal atmospheric decorrelation issues of a long integration time GEOSAR mission must be carefully studied. The ...

    • SAR interferometric coherence in wide band systems 

      Sagués Piella, Lluís; Bara Iniesta, Marc Antoni; Fabregas Canovas, Francisco Javier; Broquetas Ibars, Antoni (VSP BV, 2000-02-28)
      Article
      Accés obert
      This paper presents a study of the interferometric coherence aimed to the understanding of the main sources of phase error of an operative wide band system. This objective is accomplished by finding a theoretical expression ...

    • Scanner de microondas. Una alternativa a la radiación ionizante 

      Reyes, E De Los; Jofre Roca, Lluís; Ferrando Bataller, Miquel; Elias Fusté, Antoni; Cardama Aznar, Ángel; Broquetas Ibars, Antoni; Rius Casals, Juan Manuel; Ibañez, J; Ripollés, O (1987)
      Text en actes de congrés
      Accés obert
      La utilización de radiación de microondas para la obtención de imágenes tomográficas de cuerpos biológicos es un nuevo campo de investigación que puede englobarse dentro de los métodos de diagnóstico no invasivo. El elemento ...

    • Sea clutter statistical characterization using TerraSAR-X data 

      Makhoul Varona, Eduardo; Zhan, Yu; Broquetas Ibars, Antoni; Ruiz Rodon, Josep; Baumgartner, Stefan (Institute of Electrical and Electronics Engineers (IEEE), 2014)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      The paper presents a preliminary statistical evaluation of the sea clutter returns imaged by a spaceborne synthetic aperture radar (SAR) mission as TerraSAR-X. Two polarimetric data takes, Dual-polarized (Dual-Pol) and ...

    • Sensitivity equations and calibration requirements on airborne interferometry 

      Mallorquí Franquet, Jordi Joan; Bara, M; Broquetas Ibars, Antoni (IEEE Piscataway, 2000)
      Text en actes de congrés
      Accés obert
      The usage of an airborne interferometric SAR to mass map production is strongly dependent on the capability of performing the data processing in a near automatic mode. One of the main limitations is related to both the ...

    • Sensitivity equations and calibration requirements on airborne interferometry 

      Mallorquí Franquet, Jordi Joan; Broquetas Ibars, Antoni (Institute of Electrical and Electronics Engineers (IEEE), 2000)
      Text en actes de congrés
      Accés obert
      The usage of an airborne interferometric SAR to mass map production is strongly dependent on the capability of performing the data processing in a near automatic mode. One of the main limitations is related to both the ...

    • Signal-to-noise ratio equalization for TOPSAR mode using a nonuniform steering rate 

      Ruiz Rodon, Josep; Broquetas Ibars, Antoni; González Arbesú, José María; Closa Domínguez, Josep M.; Labriola, M (2011-09-15)
      Article
      Accés restringit per política de l'editorial
      In this letter, an optimized scanning in terrain observation by progressive scan synthetic aperture radar (TOPSAR) mode is studied. A nonuniform steering rate of the radar array antenna in the along-track direction is ...

    • Simulador de señales radar para visualización en un P.P.I 

      Aguasca Solé, Alberto; Elias Fusté, Antoni; Broquetas Ibars, Antoni (1989)
      Text en actes de congrés
      Accés obert
      This paper shows the a student training RADAR computer to control it, simulated and introduced transformation of a non-coherent X-band RADAR in station. Using the RADAR P. P. I and a personal Rayleigh targets and clutter ...

    • Simulador de señales radar para visualización en un PPI 

      Aguasca Solé, Alberto; Elias Fusté, Antoni; Broquetas Ibars, Antoni (1998)
      Text en actes de congrés
      Accés obert
      This paper shows the a student training RADAR computer to control it, simulated and introduced transformation of a non-coherent X-band RADAR in station. Using the RADAR P. P. I and a personal Rayleigh targets and clutter ...

    • Sistema cilíndrico de tomografía de microondas. Arquitectura de radiofrecuencia. Mejoras y resultados 

      de los Reyes, Elías; Broquetas Ibars, Antoni; Elias Fusté, Antoni; Ibáñez, Juan (1987)
      Text en actes de congrés
      Accés obert
      The E.M.C. of a prototype for cylindrical microwave tornography is analized, the initial design has been improved and first results are presented.

    • Sistema cilíndrico de tomografía por microondas, arquitectura de radiofrecuencia. Mejoras y resultados 

      de los Reyes, Elías; Broquetas Ibars, Antoni; Elias Fusté, Antoni; Ibáñez, Juan (1987)
      Text en actes de congrés
      Accés obert
      The E.M.C. of a prototype for cylindrical microwave tornography is analized, the initial design has been improved and first results are presented.

    • Spherical wave near-field imaging and radar cross-section measurement 

      Broquetas Ibars, Antoni; Palau, Josep; Jofre Roca, Lluís; Cardama Aznar, Ángel (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 1998-05-31)
      Article
      Accés obert
      The paper presents a new inverse synthetic aperture radar (ISAR) algorithm intended for radar cross-section (RCS) imaging and measurement from scattered fields. The method, based on a spherical-wave near-field illumination ...