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Sea Ice Detection Based on Differential Delay-Doppler Maps from UK TechDemoSat-1. [PDF]
Sensors (Basel), 2017 Zhu Y, Yu K, Zou J, Wickert J.
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Optimizing Waveform Maximum Determination for Specular Point Tracking in Airborne GNSS-R. [PDF]
Sensors (Basel), 2017 Motte E, Zribi M.
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Dual-sense circularly polarized array antenna for GPS L1/L2 bands and L-band satellite receivers. [PDF]
Sci RepKhudhair AA +3 more
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Resolving Inland Waterways with CYGNSS
2021 IEEE International Geoscience and Remote Sensing Symposium IGARSS, 2021Observations 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 +3 more
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Cygnss constellation intercalibration
2017 IEEE International Geoscience and Remote Sensing Symposium (IGARSS), 2017The 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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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, 2021The 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 Saïd +2 more
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On-Orbit Trending of CYGNSS Data
IGARSS 2019 - 2019 IEEE International Geoscience and Remote Sensing Symposium, 2019Shortly after its launch in December of 2016, the Cyclone Global Navigation Satellite System (CYGNSS) constellation began producing estimates of sea surface wind speeds. With its unique remote sensing method and use of eight satellites, the constellation is able to produce winds with shorter revisit times and in more intense weather than other sea ...
Darren S. McKague, Christopher S. Ruf
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Comparing the cygnss simulator forward scattering model with TDS-1 and cygnss on-orbit DDMS
2017 IEEE International Geoscience and Remote Sensing Symposium (IGARSS), 2017The CYGNSS (Cyclone GNSS) Mission is a constellation of 8 micro-satellites successfully launched in December 2016. Each satellite carries a GNSS-R (Global Navigation Satellite System Reflectometry) receiver which forms a Level-1 delay-Doppler map (DDM) measurement of reflected GPS L1 C/A-coded signals off the surface of the Earth.
Andrew O'Brien 0001, Joel T. Johnson
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Measuring Ice Thickness with Cygnss Altimetry
IGARSS 2018 - 2018 IEEE International Geoscience and Remote Sensing Symposium, 2018Cyclone Global Navigation Satellite System (CYGNSS) is collecting GPS signals reflected from two high altitude lakes with ice cover during Winter 2017–2018. Coherent reflections occur at the ice/water interface and carrier phase altimetry is used to estimate the draft of the ice cover. Simulated data are created using a forward model. Signal processing
David Mayers, Chris Ruf
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The NASA CYGNSS microsat constellation
CubeSats and SmallSats for Remote Sensing IV, 2020The 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 +4 more
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