Results 41 to 50 of about 3,815 (246)

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

open access: yes, 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
Benson, Craig   +5 more
core   +2 more sources

SNR and Standard Deviation of cGNSS-R and iGNSS-R Scatterometric Measurements

open access: yesSensors, 2017
This work addresses the accuracy of the Global Navigation Satellite Systems (GNSS)-Reflectometry (GNSS-R) scatterometric measurements considering the presence of both coherent and incoherent scattered components, for both conventional GNSS-R (cGNSS-R ...
Alberto Alonso-Arroyo   +7 more
doaj   +1 more source

Generic Performance Simulator of Spaceborne GNSS-Reflectometer for Land Applications

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2020
Nowadays, the space missions employing the global navigation satellite system reflectometry (GNSS-R) are UK TDS-1, NASA CYGNSS, and the Chinese BuFeng-1A/B twin satellites, part of the first Chinese global navigation satellite system reflectometry (GNSS ...
Hyuk Park   +3 more
doaj   +1 more source

Deformation Estimation Using Beidou GEO-Satellite-Based Reflectometry

open access: yesRemote Sensing, 2021
Deformation monitoring has been brought to the fore and extensively studied in recent years. Global Navigation Satellite System Reflectometry (GNSS-R) techniques have so far been developed in deformation estimation applications, which however, are ...
Yongqian Chen, Songhua Yan, Jianya Gong
doaj   +1 more source

Monitoring of Coastal Subsidence Changes Based on GNSS Positioning and GNSS-IR [PDF]

open access: yesJournal of Geodesy and Geoinformation Science, 2023
Coastal subsidence monitoring typically employs Global Navigation Satellite System (GNSS) positioning technology. This method provides information only about subsidence below the station base.
Xiaolei WANG, Zijin NIU, Xiufeng HE, Runchuan LI
doaj   +1 more source

Selection of the key earth observation sensors and platforms focusing on applications for Polar Regions in the scope of Copernicus system 2020-2030 [PDF]

open access: yes, 2019
An optimal payload selection conducted in the frame of the H2020 ONION project (id 687490) is presented based on the ability to cover the observation needs of the Copernicus system in the time period 2020–2030.
Camps Carmona, Adriano José   +6 more
core   +2 more sources

SEA SURFACE ALTIMETRY BASED ON AIRBORNE GNSS SIGNAL MEASUREMENTS [PDF]

open access: yesISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2012
In this study the focus is on ocean surface altimetry using the signals transmitted from GNSS (Global Navigation Satellite System) satellites. A low-altitude airborne experiment was recently conducted off the coast of Sydney.
K. Yu, C. Rizos, A. Dempster
doaj   +1 more source

Spatial resolution in GNSS-R under coherent scattering [PDF]

open access: yes, 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 ...
Camps Carmona, Adriano José
core   +2 more sources

“Cookie”: A Satellite Concept for GNSS Remote Sensing Constellations

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2016
This paper presents a concept, “Cookie,” for a satellite particularly suited for dense spatial sampling by future Global Navigation Satellite Systems (GNSS) remote sensing constellations.
Manuel Martin-Neira   +3 more
doaj   +1 more source

Issues on Multi-polarization of GNSS-R for Passive Radar Detection

open access: yesLeida xuebao, 2015
GNSS Reflectometry (GNSS-R) is a currently developed remote sensing technology which belongs to the passive radar domain. This paper aims to deal with some issues on multi-polarization of GNSS-R technology.
Wan Wei, Li Huang, Hong Yang
doaj   +1 more source

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