Departament de Teoria del Senyal i Comunicacions: Enviaments recents

Ara es mostren els items 1-12 de 6166

    • Efficient onboard band selection algorithm for hyperspectral imagery in SmallSat missions with limited downlink capabilities 

      Llaveria Godoy, David; Hyuk, Park; Camps Carmona, Adriano José; Narayan, Ram (Institute of Electrical and Electronics Engineers (IEEE), 2024-04-09)
      Article
      Accés obert
      Hyperspectral imaging is a key tool in numerous remote sensing applications. Images with tens or even hundreds of spectral bands contain a wealth of information to retrieve multiple geophysical parameters, to perform target ...

    • Constrained tensor decompositions for SAR data: Agricultural polarimetric time series analysis 

      Basargin, Nikita; Alonso González, Alberto; Hajnsek, Irena (Institute of Electrical and Electronics Engineers (IEEE), 2023-11-08)
      Article
      Accés obert
      Tensor decompositions are a powerful tool for multidimensional data analysis, interpretation, and signal processing. This work develops a constrained tensor decomposition framework for complex multidimensional synthetic ...

    • Low-cost all-optical switching nodes for ultra-dense optical metro-access networks 

      Sarmiento Hernández, Samael; Lázaro Villa, José Antonio (Institute of Electrical and Electronics Engineers (IEEE), 2023)
      Text en actes de congrés
      Accés obert
      Optical metro-access networks (OMANs) must enable the connectivity among 5G-based radio stations, edge datacentres, businesses, and home users. In such a heterogenous scenario, greater scalability, higher levels of dynamic ...

    • Fengyun-2F/VISSR land surface temperature anomalies between 2014 and 2022 and their potential correlation with earthquakes 

      Boudriki Semlali, Badr Eddine; Molina Ordóñez, Carlos; Hyuk, Park; Camps Carmona, Adriano José (Institute of Electrical and Electronics Engineers (IEEE), 2023)
      Comunicació de congrés
      Accés obert
      From 1998 to 2022, Earthquakes have caused more than 850 thousand deaths and US$ 700 billion in economic losses. At this time, there is no reliable precursor to predict them. Many studies have attempted to link Land Surface ...

    • Deployable Fresnel Zone Plate antenna for CubeSats 

      Garcia Morilla, Alejandro; Márquez, A.; Contreras Benito, Luis Juan; Gràcia i Solà, Guillem; Garcín, D.; Blas, R.; Rodríguez Suárez, A.; Camps Carmona, Adriano José (Institute of Electrical and Electronics Engineers (IEEE), 2023)
      Text en actes de congrés
      Accés obert
      Earth observation satellite missions are becoming increasingly important and have been also boosted by the appearance of small satellites, affordable to small companies and universities. Technology miniaturization and the ...

    • Radio frequency signal propagation through a stagnant flow in a plasma facility for analysis of the communication blackout phenomenon 

      Felgueiras Luis, Diana Zaida; Viladegut Farran, Alan; Chazot Cachard, Olivier; Camps Carmona, Adriano José (2024)
      Text en actes de congrés
      Accés obert
      During the atmospheric entry phase, the high levels of ionization on the plasma layer around a spacecraft can cause disruption of the communications, leading to a radio blackout phenomenon. This work, as part of the Horizon ...

    • Vegetation moisture estimation in the Western United States using radiometer-radar-lidar synergy 

      Chaparro Danon, David; Jagdhuber, Thomas; Piles Guillem, María; Jonard, François; Flührer, Anke; Vall-Llossera Ferran, Mercedes Magdalena; Camps Carmona, Adriano José; López Martínez, Carlos; Fernández Morán, Roberto; Baur, Martin J.; Feldman, Andrew F.; Fink, Anita; Entekhabi, Dara (Elsevier, 2024-03-15)
      Article
      Accés restringit per política de l'editorial
      Monitoring vegetation moisture conditions is paramount to better understand and assess drought impacts on vegetation, enhance crop yield predictions, and improve ecosystem models. Passive microwave remote sensing allows ...

    • Direct connection of uni-traveling-carrier photodiodes to antennas for frequency reconfigurable fiber-radio transmission in the Ka band 

      Vega Piña, Sara; Ballesteros Sánchez, Christian; Caillaud, Christophe; Lanteri, Delphine; Mekhazni, Karim; Santos Blanco, M. Concepción; Pradell i Cara, Lluís; Jofre Roca, Lluís (2024-07-01)
      Article
      Accés obert
      A compact photonically-driven wireless emitter based on a Uni-Traveling-Carrier photodiode (UTC-PD) which directly connects to a short asymmetrical inductive dipole (SAID) antenna is presented. The design exploits the ...

    • Interpreting machine learning models for survival analysis: a study of cutaneous melanoma using the SEER database 

      Hernández Pérez, Carlos; Pachón García, Cristian; Delicado Useros, Pedro Francisco; Vilaplana Besler, Verónica (2024-02-25)
      Capítol de llibre
      Accés restringit per política de l'editorial
      In this study, we train and compare three types of machine learning algorithms for Survival Analysis: Random Survival Forest, DeepSurv and DeepHit, using the SEER database to model cutaneous malignant melanoma. Additionally, ...

    • Shoot and biomass reduction of perennial weeds using hydromulches and physical changes in the mulches 

      Mas Serra, Maite; Verdú González, Antoni Maria Claret; Pueyo Morillo, Jorge; Claramunt Blanes, Josep; Cirujeda Ranzenberger, Alicia (2023-12-07)
      Article
      Accés obert
      Hydromulch, used primarily for erosion control, is now being studied as a weed control method in perennial crops and public gardens where weed control is especially difficult; the most challenging species are perennials ...

    • GPU versus FPGA implementation of a digital predistortion linearizer for wideband radiofrequency power amplifiers 

      Li, Wantao; Montoro López, Gabriel; Gilabert Pinal, Pere Lluís (Elsevier, 2024-01)
      Article
      Accés obert
      This paper presents and compares the implementation of a digital predistortion (DPD) linearizer for radiofrequency power amplifiers (PAs) considering two different hardware acceleration platforms. Both graphics processing ...

    • Monitoring biomass burning aerosol transport using CALIOP observations and reanalysis models: a Canadian wildfire event in 2019 

      Shang, Xiaoxia; Lipponen, Antti; Filioglou, Maria; Sundström, Anu-Maija; Parrington, Mark; Buchard, Virginie; Darmenov, Anton S.; Welton, Ellsworth J.; Marinou, Eleni; Amiridis, Vassilis; Sicard, Michaël; Rodríguez Gómez, Alejandro Antonio; Komppula, Mika; Mielonen, Tero (European Geosciences Union (EGU), 2024-01-30)
      Article
      Accés obert
      In May–June 2019, smoke plumes from wildfires in Alberta, Canada, were advected all the way to Europe. To analyze the evolution of the plumes and to estimate the amount of smoke aerosols transported to Europe, retrievals ...