Results 11 to 20 of about 8,117 (279)

Sea state monitoring using coastal GNSS‐R [PDF]

open access: yesGeophysical Research Letters, 2004
We report on a coastal experiment to study GPS L1 reflections. The campaign was carried out at the Barcelona Port breaker and dedicated to the development of sea‐state retrieval algorithms. An experimental system built for this purpose collected and processed GPS data to automatically generate a times series of the interferometric complex field (ICF ...
Soulat, F.   +5 more
openaire   +4 more sources

Spatial Resolution in GNSS-R Under Coherent Scattering [PDF]

open access: yesIEEE Geoscience and Remote Sensing Letters, 2020
© 2019 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes,creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component ...
Camps Carmona, Adriano José
openaire   +7 more sources

Crosstalk Statistics and Impact in Interferometric GNSS-R [PDF]

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2016
©2016 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component ...
Pascual Biosca, Daniel   +5 more
openaire   +5 more sources

Ground-based GNSS-R solutions by means of software defined radio [PDF]

open access: green, 2016
Usually ground-based GNSS-R installations are either existing geodetic GNSS stations or they are built with dedicated components that enable the deduction and monitoring of physical and geometrical properties of the reflecting area around that particular
Thomas Hobiger   +2 more
openalex   +3 more sources

Detecting Targets above the Earth’s Surface Using GNSS-R Delay Doppler Maps: Results from TDS-1 [PDF]

open access: gold, 2019
: 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 retrieval of wind speed, and the
Changjiang Hu   +5 more
openalex   +5 more sources

The Eddy Experiment: Accurate GNSS‐R ocean altimetry from low altitude aircraft [PDF]

open access: green, 2004
During the Eddy Experiment, two synchronous GPS receivers were flown at 1 km altitude to collect L1 signals and their reflections from the sea surface for assessment of altimetric precision and accuracy.
Giulio Ruffini   +4 more
openalex   +3 more sources

Sensitivity to Soil Moisture and Observation Geometry of Spaceborne GNSS-R Delay-Doppler Maps [PDF]

open access: green, 2019
© 2019 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes,creating new ...
H. Park   +5 more
openalex   +3 more sources

The Eddy Experiment II: GNSS-R speculometry for directional sea-roughness retrieval from low aircraft [PDF]

open access: green, 2004
We report on the retrieval of directional sea-roughness (the full directional mean square slope, including MSS, direction and isotropy) through inversion of Global Navigation Satellite System Reflections (GNSS-R) and SOlar REflectance Speculometry (SORES)
Olivier Germain   +5 more
openalex   +9 more sources

³Cat-3/MOTS Nanosatellite Mission for Optical Multispectral and GNSS-R Earth Observation: Concept and Analysis. [PDF]

open access: yesSensors (Basel), 2018
The 3Cat-3/MOTS (3: Cube, Cat: Catalunya, 3: 3rd CubeSat mission/Missió Observació Terra Satèl·lit) mission is a joint initiative between the Institut Cartogràfic i Geològic de Catalunya (ICGC) and the Universitat Politècnica de Catalunya-BarcelonaTech ...
Castellví J   +3 more
europepmc   +5 more sources

Soil Moisture Retrieval Using Gnss-R Data [PDF]

open access: yes2020 Mediterranean and Middle-East Geoscience and Remote Sensing Symposium (M2GARSS), 2020
The aim of this study is to propose an inversion algorithm for CYGNSS constellation data, which can be used for the monitoring of soil moisture. A change detection approach based on a 21-month CYGNSS data time series is proposed, and is processed to retrieve daily average reflectivity over a grid with a spatial resolution equal to $0.5 ^{\circ} \mathrm{
Zribi, Mehrez   +4 more
openaire   +2 more sources

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