Results 171 to 180 of about 1,430 (223)

Optimizing Waveform Maximum Determination for Specular Point Tracking in Airborne GNSS-R. [PDF]

Sensors (Basel), 2017
Motte E, Zribi M.
europepmc   +1 more source

Simulations and Observations of GNSS Ocean Surface Reflections [PDF]

, 2013
Høeg, Per, von Benzon, Hans-Henrik
core  

GNSS Reflectometry and Scatterometry onboard the International Space Station [PDF]

, 2013
Andersen, Ole Baltazar, Beyerle, George, Cardellach, Estel, Chapron, Bernard, Förste , C., Gommenginger, Christine, Gruber, T., Helm, A., Hess, M. P., Høeg, Per, Jakowski, Norbert, Jäggi, Adrian, Kern, Michael, Montenbruck, Oliver, Pierdicca, Nazzareno, Rius, A., Rothacher, M., Shum, C. K., Wickert, Jens, Zuffada, Cinzia   +19 more
core  

Comparing Spire and CYGNSS GNSS-R Reflectivity Observations

Jiahua Zhang, Jan-Peter Weiss, John Braun, Ming Li   +3 more
openaire   +1 more source

On-board FFT Data Processing for GNSS Reflectometry [PDF]

Buist, P.J., Vollmuller, G.J.
core  

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Resolving Inland Waterways with CYGNSS

2021 IEEE International Geoscience and Remote Sensing Symposium IGARSS, 2021
Observations made by the NASA Cyclone Global Navigation Satellite System (CYGNSS) of inland waterways can be used to resolve changes in water boundaries on time scales from days to weeks to months. An example of change on a daily time scale is the response of river width to rapid changes in stream flow rate.
Christopher Ruf, Clara Chew, Cynthia Gerlein-Safdi, April Warnock   +3 more
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An Evaluation of NOAA CyGNSS Winds Derived from v3.0 CyGNSS Normalized Bistatic Radar Cross Section

2021 IEEE International Geoscience and Remote Sensing Symposium IGARSS, 2021
The NOAA track-wise algorithm, used to infer sea surface wind speed from CyGNSS normalized bistatic radar cross section (NBRCS), is being used in conjunction with v3.0 NBRCS. A performance analysis is provided where NOAA CyGNSS winds derived from v2.1 NBRCS are compared with those derived from v3.0 NBRCS, using available data from August 2018 to ...
Faozi Said, Zorana Jelenak, Paul S. Chang   +2 more
openaire   +1 more source

The NASA CYGNSS microsat constellation

CubeSats and SmallSats for Remote Sensing IV, 2020
The CYGNSS constellation of eight satellites was launched in December 2016 into a low inclination Earth orbit. Each satellite carries a four-channel bi-static radar receiver which measures signals transmitted by GPS satellites and scattered back into space by the Earth surface.
Christofer S. Ruf, Clara Chew, Darren McKague, Shakeel Asharaf, Mahta Moghaddam   +4 more
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Cygnss constellation intercalibration

2017 IEEE International Geoscience and Remote Sensing Symposium (IGARSS), 2017
The Cyclone Global Navigation Satellite System (CYGNSS) mission uses a constellation of 8 satellites to measure ocean winds in the tropics with high temporal resolution (∼3 hr median, 7 hr mean revisit). Focusing on the measurement of winds in tropical cyclones, each satellite contains a Global Navigation Satellite System reflectometry (GNSS-R ...
Darren S. McKague, Christopher S. Ruf
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Soil Moisture Estimation Using CYGNSS Constellation

IGARSS 2019 - 2019 IEEE International Geoscience and Remote Sensing Symposium, 2019
The main objective of this study is to propose an inversion algorithm for the estimation of soil moisture from CYGNSS data. The algorithm based on the change detection technique is applied to CYGNSS data after several corrections taking in account the incidence effects as well as different noises. The algorithm is validated on a one study site in North
Zribi, Mehrez, Huc, Mireille, Antokoletz, Sebastian, Le Page, Michel, Pierdicca, Nazzareno, Baghdadi, Nicolas   +5 more
openaire   +2 more sources