Results 21 to 30 of about 15,182,981 (294)

Crosstalk Statistics and Impact in Interferometric GNSS-R [PDF]

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2016
This paper presents a statistical analysis of the crosstalk phenomenon in interferometric Global Navigation Satellite Systems Reflectometry (iGNSS-R). Crosstalk occurs when the Delay-Doppler Map (DDM) of a tracked satellite overlaps others fromundesired satellites.
Pascual Biosca, Daniel   +5 more
openaire   +3 more sources

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

GNSS position solutions in Japan

open access: yes, 2022
This dataset includes solutions processed by ISTerre for all Japanese GNSS stations. These products are daily position time series (North, East and Vertical), in the ITRF14 reference frame, calculated from RINEX files using the double difference method ...
gnss-products
core   +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

An Aircraft Wetland Inundation Experiment Using GNSS Reflectometry

open access: yesRemote Sensing, 2020
In early May of 2017, a flight campaign was conducted over Caddo Lake, Texas, to test the ability of Global Navigation Satellite System-Reflectometry (GNSS-R) to detect water underlying vegetation canopies. This paper presents data from that campaign and
Stephen T. Lowe   +3 more
doaj   +1 more source

Differential Code Bias Estimation using Multi-GNSS Observations and Global Ionosphere Map [PDF]

open access: yes, 2014
Measurements of Global Navigation Satellite System (GNSS) receivers are affected by systematic offsets re- lated to group and phase delays of the signal generation and processing chain.
Hauschild, André   +3 more
core   +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

The 2021 la Palma volcanic eruption and its impact on ionospheric scintillation as measured from GNSS reference stations, GNSS-R and GNSS-RO [PDF]

open access: yes, 2023
Ionospheric disturbances induced by seismic activity have been studied in recent years by many authors, showing an impact both before and after the occurrence of earthquakes.
Camps Carmona, Adriano José   +9 more
core   +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

A novel quasi-open loop architecture for GNSS carrier recovery systems [PDF]

open access: yes, 2012
The problem of designing robust systems to track global navigation satellite system (GNSS) signals in harsh environments has gained high attention. The classical closed loop architectures, such as phase locked loops, have been used for many years for ...
Letizia Lo Presti   +5 more
core   +1 more source

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