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  • Assessment of multi-scale SMOS and SMAP soil moisture products across the Iberian Peninsula 

    Portal González, Gerard; Jagdhuber, Thomas; Vall-Llossera Ferran, Mercedes Magdalena; Camps Carmona, Adriano José; Pablos Hernánez, Miriam; Entekhabi, Dara; Piles, María (Multidisciplinary Digital Publishing Institute (MDPI), 2020-02-01)
    Article
    Open Access
    In the last decade, technological advances led to the launch of two satellite missions dedicated to measure the Earth’s surface soil moisture (SSM): the ESA’s Soil Moisture and Ocean Salinity (SMOS) launched in 2009, and ...

  • Machine learning-based in-band OSNR estimation from optical spectra 

    Locatelli, Fabiano; Christodoulopoulos, Konstantinos; Svaluto Moreolo, Michela; Fàbrega, Josep Maria; Spadaro, Salvatore (2019-12-15)
    Article
    Open Access
    Measuring the optical signal to noise ratio (OSNR) at certain network points is essential for failure handling, for single connection but also global network optimization. Estimating OSNR is inherently difficult in dense ...

  • Miniature switchable millimeter-wave BiCMOS low-noise amplifier at 120/140 GHz using an HBT switch 

    Heredia, F.-Javier (Francisco Javier); Ribó Pal, Miquel; Pradell i Cara, Lluís; Wipf, Selin Tolunay; Göritz, Alexander; Wietstruck, Matthias; Wipf, Christian; Kaynak, Mehmet (2019-10-01)
    Article
    Open Access
    A 120–140 GHz frequency-switchable, very compact low-noise amplifier (LNA) fabricated in a 0.13 µm SiGe:C BiCMOS technology is proposed. A single radio-frequency (RF) switch composed of three parallel hetero junction bipolar ...

  • Split-enabled 350–630 Gb/s optical interconnect with direct detection NOMA-CAP and 7-core multi-core fiber 

    Sarmiento, Samael; Delgado Mendinueta, José Manuel; Altabas, Jose Antonio; Spadaro, Salvatore; Shinada, Satoshi; Furukawa, Hideaki; Vegas Olmos, Juan José; Lázaro Villa, José Antonio; Wada, Naoya (2020-05-15)
    Article
    Restricted access - publisher's policy
    The ever-growing data traffic volume inside data centers caused by the popularization of cloud services and edge computing demands scalable and cost-efficient network infrastructures. With this premise, optical interconnects ...

  • Activities of the IEEE GRSS Spain Chapter 

    Marcello, Javier; Piles de la Fuente, María Pilar; Camps Valls, Gustau; López Martínez, Carlos; Álvarez Pérez, José Luis; Plaza Miguel, Antonio (Institute of Electrical and Electronics Engineers, 2019-06-01)
    Article
    Open Access
    Presents information on various GRSS Society chapters

  • Proof of concept for adaptive sequential optimization of free-space communication receivers 

    Carrizo, Carlos E.; Mata Calvo, Ramón; Belmonte Molina, Aniceto (Optical Society of American (OSA), 2019-07-05)
    Article
    Open Access
    In a downlink scenario, the performance of laser satellite communications is limited due to atmospheric turbu- lence, which causes fluctuations in the intensity and the phase of the received signal, leading to an increase ...

  • Transition from Dirac points to exceptional points in anisotropic waveguides 

    Gomis Bresco, Jordi; Artigas García, David; Torner Sabata, Lluís (American Physical Society, 2019-10-04)
    Article
    Open Access
    We uncover the existence of Dirac and exceptional points in waveguides made of anisotropic materials, and study the transition between them. Dirac points in the dispersion diagram appear at propagation directions where the ...

  • Detecting Targets above the Earth's Surface Using GNSS-R Delay Doppler Maps: Results from TDS-1 

    Hu, Changjiang; Benson, Craig; Hyuk, Park; Camps Carmona, Adriano José; Qiao, Li; Rizos, Chris (Multidisciplinary Digital Publishing Institute (MDPI), 2019-10-07)
    Article
    Open Access
    : Global Navigation Satellite System (GNSS) reflected signals can be used to remotely sense the Earth’s surface, known as GNSS reflectometry (GNSS-R). The GNSS-R technique has been applied to numerous areas, such as the ...

  • Sensitivity of L-band vegetation optical depth to carbon stocks in tropical forests: a comparison to higher frequencies and optical indices 

    Chaparro Danon, David; Duveiller, Grégory; Piles de la Fuente, María Pilar; Cescatti, Alessandro; Vall-Llossera Ferran, Mercedes Magdalena; Camps Carmona, Adriano José; Entekhabi, Dara (2019-10-01)
    Article
    Restricted access - publisher's policy
    Monitoring vegetation carbon in tropical regions is essential to the global carbon assessment and to evaluate the actions oriented to the reduction of forest degradation. Mainly, satellite optical vegetation indices and ...

  • Angular control of anisotropy-induced bound states in the continuum 

    Mukherjee, Samyobrata; Gomis Bresco, Jordi; Pujol Closa, Maria del Pilar; Artigas García, David; Torner Sabata, Lluís (2019-11-01)
    Article
    Open Access
    Radiation of leaky modes existing in anisotropic waveguides can be cancelled by destructive interference at special propagation directions relative to the optical axis orientation, resulting in fully bound states surrounded ...

  • ERAstar: A high-resolution ocean forcing product 

    Mestre Trindade, Ana Filipa; Portabella, Marcos; Stoffelen, Ad; Lin, Wenming; Verhoef, Anton (Institute of Electrical and Electronics Engineers (IEEE), 2019-10-22)
    Article
    Open Access
    To address the growing demand for accurate high-resolution ocean wind forcing from the ocean modeling community, we develop a new forcing product, ERA*, by means of a geolocated scatterometer-based correction applied to ...

  • Enabling multi-segment 5G service provisioning and maintenance through network slicing 

    Montero Herrera, Rafael; Agraz Bujan, Fernando; Pagès Cruz, Albert; Spadaro, Salvatore (2020-01-03)
    Article
    Restricted access - publisher's policy
    The current deployment of 5G networks in a way to support the highly demanding service types defined for 5G, has brought the need for using new techniques to accommodate legacy networks to such requirements. Network Slicing ...

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