Now showing items 1-20 of 523

    • 2000 days of SMOS at the Barcelona Expert Centre: a tribute to the work of Jordi Font 

      Turiel Martínez, Antonio; Piles Guillem, Maria; González Gambau, V.; Ballabrera Poy, Joaquim; Gabarró Prats, Carolina; Martinez, Justino; Olmedo, Estrella; Portabella, Marcos; Pérez López, Fernando; Solé Ollé, Jordi (2016-09-01)
      Article
      Open Access
      Soil Moisture and Ocean Salinity (SMOS) is the first satellite mission capable of measuring sea surface salinity and soil moisture from space. Its novel instrument (the L-band radiometer MIRAS) has required the development ...
    • 3CAT-2, an experimental nano-satellite for GNSS-R earth observation: mission concept and analysis 

      Carreno-Luengo, Hugo; Camps Carmona, Adriano José; Muñoz, Joan Francesc; Vidal, David; Amézaga Sarries, Adrià; Bolet Alberto, Font; Jané, Jaume; Olivé, Roger; Carola, Jorge; Catarino, Nuno; Hagenfeldt, Miguel; Palomo, Pedro; Cornara, Stefania (2016-10-01)
      Article
      Open Access
      Global navigation satellite system reflectometry is a multistatic radar using navigation signals as signals of opportunity. It provides wide-swath and improved spatiotemporal sampling over current space-borne missions. The ...
    • 3Cat-2: A P(Y) and C/A GNSS-R experimental nano-satellite mission 

      Carreño Luengo, Hugo; Camps Carmona, Adriano José; Perez Ramos, I.; Forte, G.; Onrubia Ibáñez, Raúl; Díez, Raúl (Institute of Electrical and Electronics Engineers (IEEE), 2013)
      Conference report
      Restricted access - publisher's policy
      3Cat-2 is a 6 U CubeSat mission designed to perform ocean altimetry by means of Global Navigation Satellite Systems Reflectometry (GNSS-R). In this paper 3Cat-2 mission is presented. The main payload is the novel dual-band ...
    • 3CAT-3/MOTS, an experimental nanosatellite for multispectra and GNSS-R Earth Observation: Mission concept and analysis 

      Castellví Esturi, Jordi; Camps Carmona, Adriano José; Corbera Fauria, Jordi; Alamús, Ramón (Institute of Electrical and Electronics Engineers (IEEE), 2017)
      Conference report
      Restricted access - publisher's policy
      The 3 Cat-3/MOTS mission is a joint initiative between the Institut Cartogràfic i Geològic de Catalunya (ICGC) and the Universitat Politècnica de Catalunya-BarcelonaTech (UPC) to foster new and innovative technologies on ...
    • 3CAT-3/MOTS, an experimental nanosatellite for multispectral and GNSS-R earth observation: airborne optical and GNSS-R campaign 

      Castellví Esturi, Jordi; Camps Carmona, Adriano José; Onrubia Ibáñez, Raúl; Alamús, Ramón; Pascual Biosca, Daniel; Querol Borràs, Jorge; Hyuk, Park (Institute of Electrical and Electronics Engineers (IEEE), 2018)
      Conference report
      Restricted access - publisher's policy
      The 3 Cat-3/MOTS mission is a joint initiative between the Institut Cartogràfic i Geològic de Catalunya (ICGC) and the Universitat Politècnica de Catalunya-BarcelonaTech (UPC) to foster new and innovative technologies on ...
    • 3Cat-4: combined GNSS-R, L-Band radiometer with RFI mitigation, and AIS receiver for a I-Unit Cubesat based on software defined radio 

      Muñoz Martin, Joan Francesc; Miguélez Gómez, Noemí; Castellà Rubinat, Ricard; Fernandez Capon, Lara Pilar; Solanellas Bofarull, Arnau; Via Ortega, Pol; Camps Carmona, Adriano José (Institute of Electrical and Electronics Engineers (IEEE), 2018)
      Conference report
      Restricted access - publisher's policy
      The 3 Cat-4 mission aims to demonstrate the capabilities of nano-satellites plus the versatility of a Software Defined Radio for passive Earth Observation. Three different microwave payloads are integrated into a single ...
    • 3D Reconstruction of vegetation from orthophotos 

      Comino Trinidad, Marc (Universitat Politècnica de Catalunya, 2013-06-21)
      Bachelor thesis
      Open Access
      [CATALÀ] Mitjançant tècniques de Visió per Computador som capaços de detectar i classificar la flora present en una ortofoto. A partir d'aquesta informació, i d'un conjunt de models de plantes en 3D que generem, elaborem ...
    • A 1-D radiative transfer study of mineral dust during CHARMEX/ADRIMED 2013 campaign 

      Granados Muñoz, María José; Sicard, Michaël; Román Díez, Roberto; Benavent Oltra, Pablo; Barragán Cuesta, Rubén; Brogniez, G.; Denjean, Cyrielle; Alados-Arboledas, L; Muñoz Porcar, Constantino; Rodríguez Gómez, Alejandro Antonio; Comerón Tejero, Adolfo (Institute of Electrical and Electronics Engineers (IEEE), 2018)
      Conference report
      Restricted access - publisher's policy
      A 1-D radiative transfer study is presented based on the measurements performed at Granada during a dust event within the framework of the ChArMEx/ADRIMED (Chemistry-Aerosol Mediterranean Experiment/Aerosol Direct Radiative ...
    • A comparative study of operational vessel detectors for maritime surveillance using satellite-borne synthetic aperture radar 

      Stasolla, Mattia; Mallorquí Franquet, Jordi Joan; Margarit, Gerard; Santamaría, Carlos; Walker, Nick (2016-06-01)
      Article
      Open Access
      This paper presents a comparative study among four operational detectors that work by automatically post-processing synthetic aperture radar (SAR) images acquired from the satellite platforms RADARSAT-2 and COSMO-SkyMed. ...
    • A comparison of different optimisation search methodologies for self-optimisation in wireless cellular networks 

      Sánchez González, Juan; Sallent Roig, José Oriol; Pérez Romero, Jordi; Agustí Comes, Ramon (Institute of Electrical and Electronics Engineers (IEEE), 2013)
      Conference report
      Restricted access - publisher's policy
      Self-Organising Networks (SON) concept is seen as a way to reduce costs by automating functionalities such as network optimisation usually performed manually with extensive human work time. This paper provides a general ...
    • 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 comparison of phase unwrapping techniques in synthetic aperture radar interferometry 

      Ferrando Bataller, Miquel (Institute of Electrical and Electronics Engineers (IEEE), 1999)
      Conference report
      Open Access
      A comparison of different phase unwrapping techniques based on the least mean square error is presented. A testing environment based on simulated interferograms has been created in order to assess the methods described in ...
    • A generic simulator for aperture synthesis radiometers 

      Camps Carmona, Adriano José; Hyuk, Park; Barbosa Torralbo, José; Bandeiras, J.; D'Addio, Salvatore (Institute of Electrical and Electronics Engineers (IEEE), 2012)
      Conference report
      Restricted access - publisher's policy
      ESA's SMOS mission has demonstrated that Synthetic Aperture Interferometric Radiometers can be a useful tool for Earth observation. Today, the NASA's GeoStar instrument (USA), ESA's GAS instrument (Europe), or CSSAR's GIMS ...
    • A geographical heuristic routing protocol for VANETs 

      Urquiza Aguiar, Luis; Tripp Barba, Carolina; Aguilar Igartua, Mónica (2016-10-01)
      Article
      Open Access
      Vehicular ad hoc networks (VANETs) leverage the communication system of Intelligent Transportation Systems (ITS). Recently, Delay-Tolerant Network (DTN) routing protocols have increased their popularity among the research ...
    • A Ka-band Radar Interferometer: development and testing 

      Galobart Tor, Bruno (Universitat Politècnica de Catalunya / University of Massachusetts at Amherst, 2013-07-11)
      Master thesis (pre-Bologna period)
      Open Access
      Covenantee:   University of Massachusetts at Amherst
      [ANGLÈS] Radar interferometry is a remote sensing technique that consists in transmitting a signal and measuring the phase difference of the reflected signal between two antennas separated by a baseline. This phase difference ...
    • A Ku band circularly polarized 2×2 microstrip antenna array for remote sensing applications 

      Ferré, Roger; Mira, Fermín; Luzi, Guido; Mateu Mateu, Jordi; Kalialakis, C. (Institute of Electrical and Electronics Engineers (IEEE), 2017)
      Conference report
      Restricted access - publisher's policy
      This paper reports the development of a Circularly Polarized (CP) microstrip patch array working at Ku band and in particular between 16.9-17.2GHz for remote sensing applications. The design is based on a sequential ...
    • A learning approach for garbage and debris identification 

      Solé Gómez, Jaume Alexandre (Universitat Politècnica de Catalunya, 2020-10-30)
      Master thesis
      Open Access
      Covenantee:   Technische Universiteit Delft
      Plastic pollution in the sea is causing several environmental and economic problems all over the world. It is estimated that around 8 million tonnes of plastic every year end up in the sea, the vast majority coming from ...
    • A model for the wind direction signature in the stokes smissin sector from the ocean surfaces at microwave frequencies 

      Reising, S C; Camps Carmona, Adriano José (IEEE Piscataway, 2000)
      Conference report
      Open Access
      This paper presents a model of the Stokes emission vector from the ocean surface. The ocean surface is described as an ensemble of facets with Cox and Munk's (1954) Gram-Charlier slope distribution. The study discusses the ...
    • A multi-frequency SDR-based GBSAR: System overview and first results 

      Amézaga Sarries, Adrià; López Martínez, Carlos; Jové Casulleras, Roger (Multidisciplinary Digital Publishing Institute (MDPI), 2021-04-21)
      Article
      Open Access
      This work describes a system-level overview of a multi-frequency GBSAR built around a high performance software defined radio (SDR). The main goal of the instrument is to be employed as a demonstrator and experimental ...
    • A new approach to DInSAR pixel selection with spectral correlation along time between Sublooks 

      Iglesias González, Rubén; Monells Miralles, Daniel; Centolanza, Giuseppe; Mallorquí Franquet, Jordi Joan (2012)
      Conference report
      Restricted access - publisher's policy
      This paper presents a full resolution pixel selection method, alternative to the traditional ones, which is based on the study of the spectral correlation coefficient along time among different Sublooks of the image ...