Browsing by Author "Aguasca Solé, Alberto"Més informacióMés informació

Now showing items 1-20 of 83

    • 3-D printed UWB microwave bodyscope for biomedical measurements 

      Rashid, Saba; Jofre Roca, Lluís; Garrido, Alejandra; González, Giselle; Ding, Yongsheng; Aguasca Solé, Alberto; O'Callaghan Castellà, Juan Manuel; Romeu Robert, Jordi (2019-02-15)
      Article
      Open Access
      In this letter, a three-dimensional (3-D) printed compact ultrawideband (UWB) extended gap ridge horn (EGRH) antenna designed to be used for biological measurements of the human body is described. The operational frequency ...

    • A comparison of different techniques for atmospheric artefact compensation in GBSAR differential acquisitions 

      Pipia, Luca; Fabregas Canovas, Francisco Javier; Aguasca Solé, Alberto; Mallorquí Franquet, Jordi Joan (IEEE, 2006)
      Conference report
      Open Access
      In this paper, a comparison of different techniques for compensating the atmospheric artifacts in Ground-Based SAR zero-baseline acquisitions at X-Band is presented. The way the fluctuation of atmospheric parameters like ...

    • A pulsed carrier recovery using a discrete conception of the PLL 

      Aguasca Solé, Alberto; Broquetas Ibars, Antoni (Institute of Electrical and Electronics Engineers (IEEE), 1992)
      Conference report
      Open Access
      A bistatic radar system requires accurate synchronization between the transmitter and the remote receiver in order to achieve a correct coherent target detection and positioning. An unlinked receiver carrier phase/frequency ...

    • A submillimeter wave parabolic reflector by additive manufacturing 

      Romeu Robert, Jordi; Aguasca Solé, Alberto; Blanch Boris, Sebastián; O'Callaghan Castellà, Juan Manuel; Jofre Roca, Lluís; Buitrago Ventura, Santiago (Institute of Electrical and Electronics Engineers (IEEE), 2018)
      Conference report
      Restricted access - publisher's policy
      The manufacturing of prototype of an offset parabolic reflector to operate at 120 GHz is presented. The paper describes the different metallization options to achieve a good performance.

    • Active zone self-similarity of fractal sierpinski antenna verified using infra-red thermograms 

      González, J.M.; Navarro Bernal, Manuel; Puente Baliarda, Carles; Romeu Robert, Jordi; Aguasca Solé, Alberto (Institution of Electrical Engineers, 1999-08)
      Article
      Open Access
      The surface current distribution of a Sierpinski fractal antenna shows a self-similar behaviour determined by the self-similar properties of its geometry. The application of infra-red thermography to electromagnetic near ...

    • Advanced polarimetric optimization for DInSAR applications with Ground-Based SAR 

      Iglesias González, Rubén; Fabregas Canovas, Francisco Javier; Aguasca Solé, Alberto; López Martínez, Carlos; Alonso González, Alberto (2012)
      Conference report
      Restricted access - publisher's policy
      In this paper, the applications of advanced polarimetric optimization techniques for Differential Interferometric SAR (DInSAR) pixel selection are explored in the framework of deformation map retrieval in landslides. ...

    • Altimetry study performed using an airborne GNSS-reflectometer 

      Rodríguez Álvarez, Nereida; Acevo Herrera, René; Aguasca Solé, Alberto; Valencia Domènech, Enric; Camps Carmona, Adriano José; Vall-Llossera Ferran, Mercedes Magdalena; Bosch Lluís, Xavier; Ramos Pérez, Isaac (2010)
      Conference lecture
      Open Access
      The Global Navigation Satellite Signals Reflections (GNSSR)techniques have been widely used for remote sensing purposes retrieving geophysical parameters over different types of surfaces. Over the ocean, altimetry or sea ...

    • An example from the Basic Engineering Project subject at the UPC Telecom-BCN School: learning radiofrequency links, antennas and amplifiers with the help of recycled materials 

      Rocadenbosch Burillo, Francisco; Aguasca Solé, Alberto; Broquetas Ibars, Antoni; Camps Carmona, Adriano José (2018)
      Conference report
      Open Access

    • Aplicacion de sistemas Dll en la recuperacion de sincronismo de señales radar con Staggering 

      Aguasca Solé, Alberto (1991)
      Conference report
      Open Access
      In a bistaric radar receiver we need an accurate synchronism with the transmitted signal in arder to get the position of targets from the received echoes. Here we have a system based on delay-lock techniques which allows ...

    • Aplicación de los generadores de forma de onda arbitraria en la simulación de señales radar 

      Broquetas Ibars, Antoni; Aguasca Solé, Alberto; Elias Fusté, Antoni (1992)
      Conference report
      Open Access

    • Aplicación de sistemas PLL en la recuperación del sincronismo de portadora para un radar Biestatico coherente 

      Aguasca Solé, Alberto (1991)
      Conference report
      Open Access
      A bistatic radar, which allows to process the target velocity information, must synchronize the phase and the frequency of the transmitted carrier to demodulate coherently the radar echoes. The paper presents a PLL system ...

    • Application of high resolution spotlight TerraSAR-X data to landslide monitoring 

      Iglesias González, Rubén; Monells Miralles, Daniel; Centolanza, Giuseppe; Mallorquí Franquet, Jordi Joan; Fabregas Canovas, Francisco Javier; Aguasca Solé, Alberto; López Martínez, Carlos (2012)
      Conference report
      Restricted access - publisher's policy
      This paper seeks to demonstrate that radar-based remote sensing techniques, especially those based on orbital sensors, can be as effective as the conventional geotechnical and discrete GPS measurement ones for the detection ...

    • Application of the conjugate gradient method to a self-matching network for industrial microwave heating antennas 

      Mallorquí Franquet, Jordi Joan; Aguasca Solé, Alberto; Cardama Aznar, Ángel; Pages, R; Haro, J M (Institute of Electrical and Electronics Engineers (IEEE), 1999)
      Conference report
      Open Access
      One of the main problems regarding the efficiency in a heating industrial system using high power microwaves is related with the uncontrolled changes on the load. These changes can be caused both by the different kinds of ...

    • ARBRES: Light-weight CW/FM SAR sensors for small UAVs 

      Aguasca Solé, Alberto; Acevo Herrera, René; Broquetas Ibars, Antoni; Mallorquí Franquet, Jordi Joan; Fabregas Canovas, Francisco Javier (2013-03-06)
      Article
      Open Access
      This paper describes a pair of compact CW/FM airborne SAR systems for small UAV-based operation (wingspan of 3.5 m) for low-cost testing of innovative SAR concepts. Two different SAR instruments, using the C and X bands, ...

    • Assessment of 3-D printing technologies for millimeter-wave reflectors 

      Romeu Robert, Jordi; Blanch Boris, Sebastián; Vidal, Neus; Lopez-Villegas, Jose Maria; Aguasca Solé, Alberto (Institute of Electrical and Electronics Engineers (IEEE), 2018-07-20)
      Article
      Open Access
      Three different 3D printing technologies: Stereolithography (SLA), Fused Deposition Modeling (FDM) and HP Multi Jet Fusion Technology (MJF) are compared to build a parabolic reflector operating at 100 GHz. Fabrication ...

    • Atmospheric phase drift analysis and compensation in permanent Gb-Sar monitoring of crop fields 

      Palacio García, Héctor; Broquetas Ibars, Antoni; Aguasca Solé, Alberto (Institute of Electrical and Electronics Engineers (IEEE), 2021)
      Conference report
      Open Access
      In the framework of a feasibility study in support of the Hydroterra mission, a high resolution radar has been setup to monitor continuously a crop field with high resolution synthetic aperture radar images. In parallel, ...

    • Atmospheric phase screen compensation in ground-based sar with a multiple-regression model over mountainous regions 

      Iglesias González, Rubén; Fabregas Canovas, Francisco Javier; Aguasca Solé, Alberto; Mallorquí Franquet, Jordi Joan; López Martínez, Carlos; Gili Ripoll, José Antonio; Corominas Dulcet, Jordi (Institute of Electrical and Electronics Engineers (IEEE), 2014-05-01)
      Article
      Restricted access - publisher's policy
      In this paper, a new model-based technique for the compensation of severe height-dependent atmospheric artifacts, using ground-based synthetic aperture radar (SAR) data over mountainous regions, is proposed. The method ...

    • Automatic self-matching network for industrial microwave heating based on the conjugate gradient algorithm 

      Mallorquí Franquet, Jordi Joan; Aguasca Solé, Alberto; Cardama Aznar, Ángel; Pagès Serra, Romà; Haro Sánchez, Jose (IEE-INST ELEC ENG, 1999-02-28)
      Article
      Open Access
      An automatic matching network has been implemented using a waveguide magic T with two sliding short circuit stubs whch are adjusted by a microcontroller running a conjugate gradient algorithm. The inclusion of this device ...

    • Collimated beam FMCW radar for vital sign patient monitoring 

      Prat, Arnau; Blanch Boris, Sebastián; Aguasca Solé, Alberto; Romeu Robert, Jordi; Broquetas Ibars, Antoni (2018-12-18)
      Article
      Open Access
      Patient monitoring of vital signals such as breathing rhythm and heart beat rate can be done remotely by the use of a radar system. This approach is advantageous since it does not require any contact with the patient. ...

    • Comparing satellite based and ground based radar interferometry and field observations at the Canillo landslide (Pyrenees) 

      Corominas Dulcet, Jordi; Iglesias González, Rubén; Aguasca Solé, Alberto; Mallorquí Franquet, Jordi Joan; Fabregas Canovas, Francisco Javier; Planas, Xavier; Gili Ripoll, José Antonio (Springer, 2014)
      Conference report
      Restricted access - publisher's policy
      The landslide of El Forn de Canillo in the Principality of Andorra is one of the largest in the Pyrenees. In 2007 a monitoring system (boreholes equipped with inclinometers, extensometers and piezometers) was set up. Between ...