Enviaments recents

  • Initial evaluation of SAR capabilities in UAV multicopter platforms 

    Lort Cuenca, Marc; Aguasca Solé, Alberto; López Martínez, Carlos; Martínez Marín, Tomás (2017-10-04)
    Article
    Accés obert
    Airborne synthetic aperture radar (SAR) sensors have been commonly used during the last decades to monitor different phenomena in medium-scale areas of observation, such as object detection and characterization or topographic ...
  • Feasibility of precise navigation in high and low latitude regions under scintillation conditions 

    Juan Zornoza, José Miguel; Sanz Subirana, Jaume; González Casado, Guillermo; Rovira Garcia, Adrià; Camps Carmona, Adriano José; Riba Sagarra, Jaume; Barbosa, José; Blanch Llosa, Estefania; Altadill, David; Orús Pérez, Raul (2018-02-06)
    Article
    Accés obert
    Scintillation is one of the most challenging problems in Global Navigation Satellite Systems (GNSS) navigation. This phenomenon appears when the radio signal passes through ionospheric irregularities. These irregularities ...
  • Sea target detection using spaceborne GNSS-R delay-doppler maps: theory and experimental proof of concept using TDS-1 data 

    Di Simone, Alessio; Hyuk, Park; Riccio, Daniele; Camps Carmona, Adriano José (2017-09-01)
    Article
    Accés obert
    This study addresses a novel application of global navigation satellite system-reflectometry (GNSS-R) delay-Doppler maps (DDMs), namely sea target detection. In contrast with other competing remote sensing technologies, ...
  • Wind direction signatures in GNSS-R observables from space 

    Guan, Dongliang; Hyuk, Park; Camps Carmona, Adriano José; Wang, Yong; Onrubia Ibáñez, Raúl; Querol Borràs, Jorge; Pascual Biosca, Daniel (2018-01-29)
    Article
    Accés obert
  • 3Cat-3/MOTS nanosatellite mission for optical multispectral and GNSS-R Earth Observation: concept and analysis 

    Castellví Esturi, Jordi; Camps Carmona, Adriano José; Corbera Fauria, Jordi; Alamús, Ramón (Multidisciplinary Digital Publishing Institute (MDPI), 2018-01-06)
    Article
    Accés obert
    The 3Cat-3/MOTS (3: Cube, Cat: Catalunya, 3: 3rd CubeSat mission/Missió Observació Terra Satèl·lit) mission is a joint initiative between the Institut Cartogràfic i Geològic de Catalunya (ICGC) and the Universitat Politècnica ...
  • On the amount of information content in microwave radiometry for wet delay estimation 

    Gual de Torrella, José María; Camps Carmona, Adriano José (2017-07-01)
    Article
    Accés obert
    This paper aims at determining the set of optimum frequencies to be used in the companion microwave radiometers in future synthetic aperture radar altimeters, to provide higher spatial resolution of the atmospheric water-vapor ...
  • An architecture providing depolarization ratio capability for a multi-wavelength Raman lidar: implementation and first measurements 

    Rodríguez Gómez, Alejandro Antonio; Sicard, Michaël; Granados Muñoz, María José; Ben Chahed, Enis; Muñoz Porcar, Constantino; Barragán Cuesta, Rubén; Comerón Tejero, Adolfo; Rocadenbosch Burillo, Francisco; Vidal, Eric (MDPI AG, 2017-12-20)
    Article
    Accés obert
    A new architecture for the measurement of depolarization produced by atmospheric aerosols with a Raman lidar is presented. The system uses two different telescopes: one for depolarization measurements and another for ...
  • A generic level 1 simulator for spaceborne GNSS-R missions and application to GEROS-ISS ocean reflectometry 

    Hyuk, Park; Camps Carmona, Adriano José; Pascual Biosca, Daniel; Kang, Yujin; Onrubia Ibáñez, Raúl; Querol Borràs, Jorge; Alonso Arroyo, Alberto (2017-07-18)
    Article
    Accés obert
    In the past decade Global Navigation Satellites System Reflectometry (GNSS-R) has emerged as a new technique for earth remote sensing for various applications, such as ocean altimetry and sea state monitoring. After the ...
  • Effect of atmospheric anisoplanatism on earth-to-satellite time transfer over laser communication links 

    Belmonte Molina, Aniceto; Taylor, Michael T.; Hollberg, Leo; Kahn, J. M. (2017-07-10)
    Article
    Accés obert
    The need for an accurate time reference on orbiting platforms motivates study of time transfer via free-space optical communication links. The impact of atmospheric turbulence on earth-to-satellite optical time transfer ...
  • Interferometric orbit determination for geostationary satellites 

    Martin Fuster, Roger; Fernández Usón, Marc; Broquetas Ibars, Antoni (2017-06-01)
    Article
    Accés restringit per política de l'editorial
    Future GeoSAR missions are expected to provide higher resolution radar images featuring shorter revisit times by locating a radar payload on-board of a geostationary satellite. One of the main challenges in GeoSAR processing ...
  • Observation of optical vortex streets in walking-second harmonic generation 

    Molina Terriza, Gabriel; Dmitri, V Petrov; Recolons Martos, Jaume; Torner Sabata, Lluís (2002-04-15)
    Article
    Accés restringit per política de l'editorial
    We report what is believed to be the first experimental observation of spontaneous nucleation of arrays of optical vortices in the process of second-harmonic generation in a crystal with moderate Poynting vector walk-off, ...
  • Optical metrology techniques harness structured light beams 

    Rosales Guzmán, Carmelo; Belmonte Molina, Aniceto; Pérez Torres, Juan (2017-03-08)
    Article
    Accés restringit per política de l'editorial
    This approach holds promise for advancing laser remote sensing, fluid dynamics and profilometry.

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