Results 11 to 20 of about 4,586 (165)

Improving the Pulse-Limited Footprint Resolution of GNSS-R Based on the Novel Joint Bandwidth Method

open access: yesRemote Sensing, 2023
The bistatic global navigation satellite system’s (GNSS) signal reflection technology has become an effective means of space-based sea surface wind field retrieval and height retrieval.
Zhen Cui   +9 more
doaj   +1 more source

Estimativa da Umidade do Solo por Refletometria GNSS: uma Revisão Conceitual

open access: yesRevista Brasileira de Cartografia, 2021
O monitoramento da umidade do solo possibilita o manejo e uso eficiente de recursos hídricos, sendo uma atividade importante em diversas áreas, tais como: no monitoramento de áreas de risco; delimitação de áreas suscetíveis a enchentes; atividades da ...
Jorge Felipe Euriques   +4 more
doaj   +1 more source

An Analytical Formulation of the Correlation of GNSS-R Signals

open access: yesIEEE Transactions on Geoscience and Remote Sensing, 2022
We present an analytical formulation of the correlation coefficient of the electromagnetic fields scattered at near-specular direction by a rough or gently undulating surface and measured at two spatially separated positions occupied by a moving receiver at slightly different times.
Di Martino G., Di Simone A., Iodice A.
openaire   +1 more source

Impact of the Initial State on BDS Real-Time Orbit Determination Filter Convergence

open access: yesRemote Sensing, 2018
High precision real-time orbit of navigation satellites are usually predicted based on batch estimation solutions, which is highly dependent on the accuracy of the dynamic model.
Yun Qing   +4 more
doaj   +1 more source

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   +3 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

Latest Advances in the Global Navigation Satellite System—Reflectometry (GNSS-R) Field

open access: yesRemote Sensing, 2023
The global navigation satellite system-reflectometry (GNSS-R) field has experienced an exponential growth as it is becoming relevant to many applications and has captivated the attention of an elevated number of research scholars, research centers and ...
Nereida Rodriguez-Alvarez   +2 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

Spatiotemporal Evaluation of GNSS-R Based on Future Fully Operational Global Multi-GNSS and Eight-LEO Constellations

open access: yesRemote Sensing, 2018
Spaceborne GNSS-R (global navigation satellite system reflectometry) is an innovative and powerful bistatic radar remote sensing technique that uses specialized GNSS-R instruments on LEO (low Earth orbit) satellites to receive GNSS L-band signals ...
Fan Gao   +6 more
doaj   +1 more source

Simulation-Based Feasibility Analysis of Ship Detection Using GNSS-R Delay-Doppler Maps

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2020
In this article, we carry out a simulation analysis of ship detection via Global Navigation Satellite System-Reflectometry (GNSS-R) delay-Doppler map (DDM).
Tiziana Beltramonte   +8 more
doaj   +1 more source

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