Results 251 to 260 of about 14,281,997 (294)

Status and perspectives of GNSS-R at ESA

2007 IEEE International Geoscience and Remote Sensing Symposium, 2007
This paper presents an overview of the activities currently being undertaken by the European Space Agency in the field of GNSS reflectometry. Furthermore, the salient features of Europe's Galileo project with respect to the applicability of the signals for the purpose of GNSS-R are given.
Christopher Buck, Salvatore D'Addio
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The Pseudo Monostatic Point for Gnss-R

IGARSS 2019 - 2019 IEEE International Geoscience and Remote Sensing Symposium, 2019
Recently, the use of spaceborne GNSS-R for sea-target detection has been demonstrated using DDMs collected by SGR-ReSI onboard TDS-1. These DDMs are windowed around the forward scattering specular point. At this point, the sea-surface response is strongest and it is well suited for remote sensing of Earth’s oceans.
Benjamin J. Southwell, Andrew G. Dempster   +1 more
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An Adaptive Window for GNSS-R Stare Processing

IGARSS 2019 - 2019 IEEE International Geoscience and Remote Sensing Symposium, 2019
Using spaceborne platforms, stare processing of Delay Doppler Maps (DDM) is a powerful technique that enables up to 20 contiguous DDMs to be combined to estimate the sea state at a single point on the ocean surface. This technique avoids over 100km of blurring in the spatial domain that would occur if the specular window in these contiguous DDMs were ...
Benjamin J. Southwell, Andrew G. Dempster   +1 more
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Snow monitoring using GNSS-R techniques

2011 IEEE International Geoscience and Remote Sensing Symposium, 2011
GNSS-R techniques are currently being studied to remotely sense a number of geophysical parameters over different types of surfaces [1-6]. The Interference Pattern Technique (IPT) is based on the measurement of the interference pattern of the GPS direct and reflected signals, after reflecting over the surface, as the GPS satellites move.
Nereida Rodriguez-Alvarez, Albert Aguasca, Enric Valencia, Xavier Bosch-Lluis, Isaac Ramos-Pérez, Hyuk Park 0001, Adriano Camps, Mercè Vall-Llossera   +7 more
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Wetland GNSS-R measurements from aircraft

2017 IEEE International Geoscience and Remote Sensing Symposium (IGARSS), 2017
Characterizing, understanding, and projecting changes in atmospheric methane and terrestrial water storage require information about wetland dynamics, which remains a major gap in existing knowledge. Despite recent advances in satellite monitoring techniques, dynamic wetland mapping needs to be improved for more accurate global inventories and also to ...
Estel Cardellach, Fran Fabra, Weiqiang Li 0001, Serni Ribo, Antonio Rius, Rashmi Shah, Clara C. Chew, Son V. Nghiem, Maximilian Semmling   +8 more
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Oil slicks detection using GNSS-R

2011 IEEE International Geoscience and Remote Sensing Symposium, 2011
Global Navigation Satellite Systems' signals reflectometry, originally envisioned for ocean altimetry, has become a promising remote sensing technique. Among other applications, it has been proposed for ocean scatterometry for sea state determination. Most of the proposed scatterometry techniques have as a product an average sea state descriptor over ...
Enric Valencia, Adriano Camps, Hyuk Park 0001, Nereida Rodriguez-Alvarez, Xavier Bosch-Lluis, Isaac Ramos-Pérez   +5 more
openaire   +1 more source

Study of accurate ocean-altimetry with GNSS-R

2013 IEEE International Geoscience and Remote Sensing Symposium - IGARSS, 2013
The paper explored a method to obtain accurate lake surface heights using Global Navigation Satellite System (GNSS) Coarse/Acquisition Code (C/A)reflected from the ocean surface. The method is referred to as Global Navigation Satellite System-Reflection (GNSS-R) (C/A) code altimetry.
Yun Zhang 0012, Fengling Liu, Qiming Gu, Wanting Meng, Zhonghua Hong, Yanling Han   +5 more
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Theoretical study on GNSS-R vegetation biomass

2012 IEEE International Geoscience and Remote Sensing Symposium, 2012
GNSS-R(Global Navigation Satellite System-Reflectometry) remote sensing has been attracted much more attention during the past decade. As for land scenario, soil moisture and vegetation properties are the research priorities. This paper focuses on the initial study of GNSSR vegetation biomass using the already developed microwave scattering model Bi ...
Xuerui Wu, Ying Li, Jin Xu
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Ionospheric Scintillation Monitoring Using GNSS-R?

IGARSS 2018 - 2018 IEEE International Geoscience and Remote Sensing Symposium, 2018
Peer ...
Camps Carmona, Adriano José, Hyuk, Park, Juan Zornoza, José Miguel, Sanz Subirana, Jaume, González Casado, Guillermo, Barbosa, José, Fabbro, V, Lemorton, J, Orús Pérez, Raul   +8 more
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Sea-State Determination Using GNSS-R Data

IEEE Geoscience and Remote Sensing Letters, 2010
Q1
Juan Fernando Marchan-Hernandez, Enric Valencia, Nereida Rodriguez-Alvarez, Isaac Ramos-Pérez, Xavier Bosch-Lluis, Adriano Camps, Francisco Eugenio, Javier Marcello   +7 more
openaire   +3 more sources