Results 141 to 150 of about 723 (178)
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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&#160;people ...
Joakim Strandberg, Rüdiger Haas
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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 ...
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The rise of GNSS reflectometry for Earth remote sensing
2015 IEEE International Geoscience and Remote Sensing Symposium (IGARSS), 2015The 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 +6 more
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Theoretical Fundamentals of GNSS Reflectometry
2021GNSS 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.
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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.) +2 more
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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.) +2 more
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Ship detection using GNSS-reflectometry in backscattering configuration
2018 IEEE Radar Conference (RadarConf18), 2018The 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. +3 more
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Coordination of GNSS Signals with LiDAR for Reflectometry
ION GNSS+, The International Technical Meeting of the Satellite Division of The Institute of Navigation, 2017In this paper, we present the results of a controlled GNSS reflectometry experiment to measure the power scattered from the surface and coordinate the power scatter with the surface from which it reflected by use of a collocated lidar and reference GNSS receiver.
Roohollah Parvizi +5 more
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GNSS reflectometry (GNSS-R) for environmental observation
2022Guergana Guerova, Tzvetan Simeonov
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