Now showing items 1-12 of 1143

  • ³Cat-4 Mission: a 1-unit cubesat for earth observation with a L-band radiometer and a GNSS-reflectometer using software defined radio 

    Ruiz De Azúa Ortega, Juan Adrián; Muñoz Martin, Joan Francesc; Fernandez Capon, Lara Pilar; Badia Ballús, Marc; Llaveria Godoy, David; Diez Garcia, Carlos; Aguilella, Andrea; Pérez Portero, Adrián; Milián, O.; Sobrino Hidalgo, Marco; Navarro Trastoy, Ángel; Lleó, H.; Sureda Anfres, Miquel; Soria Guerrero, Manel; Calveras Augé, Anna M.; Camps Carmona, Adriano José (2019)
    Conference lecture
    Restricted access - publisher's policy
    Global Navigation Satellite System Reflectometry and L-band microwave radiometry have been used for soil moisture, biomass, and cryosphere studies. Combining both technologies in a low-power and cost-effective solution ...
  • Effects of differential oscillator phase noise in precoding performance 

    Martínez Marrero, Liz; Merlano-Duncan, Juan Carlos; Querol, Jorge; Chatzinotas, Symeon; Camps Carmona, Adriano José; Ottersten, Björn (2019)
    Conference report
    Restricted access - publisher's policy
    Satellite Precoding is a promising technique to meet the target data rates of the future high throughput satellite systems and the costs per bit as required by 5G applications and networks, but it requires strict synchronization ...
  • Influence of quality filtering approaches in BEC SMOS L3 soil moisture products 

    Pablos, Miriam; Vall-Llossera Ferran, Mercedes Magdalena; Piles, María; Camps Carmona, Adriano José; González-Haro, Cristina; Turiel, Antonio; Herbert, Christoph Josef; Chaparro Danon, David; Portal González, Gerard (2019)
    Conference lecture
    Restricted access - publisher's policy
    Global Soil Moisture and Ocean Salinity (SMOS) Level 3 (L3) soil moisture (SM) products are being routinely distributed by the Barcelona Expert Centre (BEC). The quality and accuracy of these SM products have been demonstrated ...
  • Proof-of-concept of a federated satellite system between two 6-unit cubeSats for distributed earth observation satellite systems 

    Ruiz De Azúa Ortega, Juan Adrián; Fernandez Capon, Lara Pilar; Muñoz Martin, Joan Francesc; Badia Ballús, Marc; Castellà Rubinat, Ricard; Diez Garcia, Carlos; Aguilella, Andrea; Calveras Augé, Anna M.; Camps Carmona, Adriano José (2019)
    Conference lecture
    Restricted access - publisher's policy
    During these years, novel Distributed Satellite Systems (DSS) have addressed the new Earth Observation (EO) requirements (e.g. near-real time access to data, or multi-point observations). One of the DSS proposals is the ...
  • Development of an IEEE standard for calibration of microwave radiometers 

    Houtz, Derek; Blackwell, William; Camps Carmona, Adriano José; Emery, William; Gasiewski, Albin; Murk, Axel (2019)
    Conference report
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    In January 2019 a Project Authorization Request was submitted to the IEEE standards association with the title "Standard for Calibration of Microwave Radiometers in the 300 MHz to 1 THz Frequency Range for Geoscience ...
  • Polar sea ice thickness and melt pond fraction measurements with multi-frequency bistatic radar polarimetric and interferometric reflectometry 

    V. Nghiem, Son; Perovich, Donald K.; Polashenski, Christopher; Lowe, Stephen T.; Shah, Rashmi; Mannucci, Anthony J.; Camps Carmona, Adriano José; Cardellach, Estel; Tsang, Leung; Zhu, Jiyue; Tan, Shurun (Institute of Electrical and Electronics Engineers (IEEE), 2019)
    Conference lecture
    Restricted access - publisher's policy
    Arctic and Antarctic sea ice covers are in a sharp contrast in terms of characteristics, distributions, and processes with a drastic decrease in the Arctic versus the opposite increase in the Antarctic in a changing climate. ...
  • Towards a 20m global building map from Sentinel-1 SAR Data 

    Chini, Marco; Pelich, Ramona; Hostache, Renaud; Matgen, Patrick; López Martínez, Carlos (Multidisciplinary Digital Publishing Institute (MDPI), 2018-11-19)
    Article
    Open Access
    This study introduces a technique for automatically mapping built-up areas using synthetic aperture radar (SAR) backscattering intensity and interferometric multi-temporal coherence generated from Sentinel-1 data in the ...
  • Large-scale automatic vessel monitoring based on dual-polarization sentinel-1 and AIS data 

    Pelich, Ramona; Chini, Marco; Hostache, Renaud; Matgen, Patrick; López Martínez, Carlos; Nuevo, Miguel; Ries, Phillipe; Eiden, Gerd (Multidisciplinary Digital Publishing Institute (MDPI), 2019-05-07)
    Article
    Open Access
    This research addresses the use of dual-polarimetric descriptors for automatic large-scale ship detection and characterization from synthetic aperture radar (SAR) data. Ship detection is usually performed independently on ...
  • Sentinel-1 InSAR coherence for land cover mapping: a comparison of multiple feature-based classifiers 

    Jacob, Alex; Vicente-Guijalba, Fernando; López Martínez, Carlos; López Sánchez, Juan Manuel; Mallorquí Franquet, Jordi Joan (Institute of Electrical and Electronics Engineers (IEEE), 2020-01-22)
    Article
    Open Access
    This article investigates and demonstrates the suitability of the Sentinel-1 interferometric coherence for land cover and vegetation mapping. In addition, this study analyzes the performance of this feature along with ...
  • Quantization and sampling effects on microwave radiometry RFI mitigation algorithms 

    Díez García, Raúl; Camps Carmona, Adriano José (Institute of Electrical and Electronics Engineers (IEEE), 2019)
    Conference lecture
    Restricted access - publisher's policy
    Radio Frequency Interference (RFI) is an increasing problem in Microwave Radiometry, particularly for Earth Observation. It has been observed at L-band in ESA's SMOS (Soil Moisture and Ocean Salinity) Earth Explorer mission, ...
  • Architectures and synchronization techniques for coherent distributed remote sensing systems 

    Merlano-Duncan, Juan Carlos; Querol, Jorge; Camps Carmona, Adriano José; Chatzinotas, Simeon; Ottersten, Bjorn (Institute of Electrical and Electronics Engineers (IEEE), 2019)
    Conference lecture
    Restricted access - publisher's policy
    Phase, frequency and time synchronization is a crucial requirement for many applications as such as multi-static remote sensing and distributed beamforming for communications. The literature on the field is very wide, and ...
  • High resolution soil moisture retrieval using optical and GNSS-R airborne data 

    Castellví Esturi, Jordi; Camps Carmona, Adriano José; Corbera, Jordi; Alamús, Ramón (Institute of Electrical and Electronics Engineers (IEEE), 2019)
    Conference lecture
    Restricted access - publisher's policy
    Soil moisture is a key indicator for the management of a resource as precious and scarce as water. Sectors such as agriculture, environmental monitoring, and territory management, need to know the soil hydrological stress ...