Results 181 to 190 of about 78,703 (214)

Mobile GNSS reflectometry measurements

2020
<p>A major benefit of ground-based GNSS reflectometry (GNSS-R) over e.g. traditional tide gauge installations is the lower cost and basically maintenance-free operations. Still, a geodetic GNSS antenna is not exactly free of charge, so using cheaper equipment can make the technology available to even more people ...
Joakim Strandberg, Rüdiger Haas
openaire   +1 more source

Theoretical Fundamentals of GNSS Reflectometry

2021
GNSS reflectometry usually relies on a model or a criterion which is established in advance, to measure geophysical parameters or detect natural phenomena or man-made objects. The models and criteria can be theoretical or empirical depending on the application scenario and the observation platform.
openaire   +1 more source

The rise of GNSS reflectometry for Earth remote sensing

2015 IEEE International Geoscience and Remote Sensing Symposium (IGARSS), 2015
The Global Navigation Satellite System (GNSS) reflectometry, i.e. GNSS-R, is a novel remote-sensing technique first published in [1] that uses GNSS signals reflected from the Earth's surface to infer its surface properties such as sea surface height (SSH), ocean winds, sea-ice coverage, vegetation, wetlands and soil moisture, to name a few.
Cinzia Zuffada, Zhijin Li, Son V. Nghiem, Steve Lowe, Rashmi Shah, Maria Paola Clarizia, Estel Cardellach   +6 more
openaire   +2 more sources

GNSS Reflectometry and Applications

2017
© Springer International Publishing AG 2018. When positioning with GNSS, multipath signal is a reflected GNSS signal that is a nuisance and as such needs to be eliminated. Whereas this reflected signal on the one hand is a nuisance for positioning, for environmental monitoring purposes, it could be useful in monitoring sea-wind retrieval, seawater ...
openaire   +2 more sources

Ship detection using GNSS-reflectometry in backscattering configuration

2018 IEEE Radar Conference (RadarConf18), 2018
The chance of exploiting the Global Navigation Satellite Systems-Reflectometry (GNSS-R) remote sensing technology in the field of maritime surveillance and ship traffic monitoring has been explored in the very recent past. The conventional bistatic GNSS-R is based on the acquisition of GNSS navigation messages in a forward-scattering geometry, where ...
DI Simone A., Braca P., Millefiori L. M., Willett P.   +3 more
openaire   +2 more sources

TDS-1 GNSS Reflectometry

2018
This study presents the development and a systematic evaluation study of GNSS reflectometry wind speeds. After establishing a wind speed retrieval algorithm, UK TechDemoSat-1 (TDS-1) derived winds, from May 2015 to July 2017, are compared to the Advanced Scatterometer (ASCAT).
Asgarimehr, Milad (Dr.-Ing.), Wickert, Jens (Prof. Dr.), Reich, Sebastian (Prof.)   +2 more
openaire   +1 more source

Wind retrieval for GNSS reflectometry from techdemosat-1

2017 IEEE International Geoscience and Remote Sensing Symposium (IGARSS), 2017
The main purpose of this study is to propose and validate a new algorithm for wind speed retrieval over the ocean using Global Navigation Satellite System-Reflectometry (GNSS-R). The proposed method is based on a Least Squares (LS) estimation from the volume of the scattered power function.
Generoso Giangregorio, Pia Addabbo, Carmela Galdi, Maurizio di Bisceglie   +3 more
openaire   +2 more sources

GNSS Reflectometry Global Ocean Wind Speed Using Deep Learning: Development and Assessment of CyGNSSnet

Remote Sensing of Environment, 2022
Milad Asgarimehr, Tobias Weigel, Christopher S. Ruf   +2 more
exaly  

Detecting Fire Disturbances in Forests by Using GNSS Reflectometry and Machine Learning: A Case Study in Angola

Remote Sensing of Environment, 2022
Leila Guerriero, Davide Comite, Emanuele Santi   +2 more
exaly  

The Potential of Spaceborne GNSS Reflectometry for Detecting Ocean Surface Currents

Remote Sensing of Environment, 2022
Mostafa Hoseini, Hossein Nahavandchi
exaly