Results 21 to 30 of about 14,281,997 (294)

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

Leida 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

A new multipath mitigation method for GNSS receivers based on antenna array [PDF]

, 2012
the potential of small antenna array for multipath mitigation in GNSS systems is considered in this paper. To discriminate the different incoming signals (Line of sight and multipaths), a new implementation of the well known SAGE algorithm is proposed ...
Rougerie, Sébastien, Carrie, Guillaume, Monnerat, Michel, Ries, Lionel, Vincent, François   +4 more
core   +1 more source

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

Remote 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, Tianhe Xu, Nazi Wang, Chunhua Jiang, Yujun Du, Wenfeng Nie, Guochang Xu   +6 more
doaj   +1 more source

An Aircraft Wetland Inundation Experiment Using GNSS Reflectometry

Remote 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, Clara Chew, Jesal Shah, Michael Kilzer   +3 more
doaj   +1 more source

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

, 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, Steigenberger, Peter, Montenbruck, Oliver   +2 more
core   +1 more source

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

IEEE 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, Paolo Braca, Maurizio Di Bisceglie, Alessio Di Simone, Carmela Galdi, Antonio Iodice, Leonardo M. Millefiori, Daniele Riccio, Peter Willett   +8 more
doaj   +1 more source

Comparision of Sea Surface Height Anomaly measurements from Grazing Angle GNSS-R Altimetry and Sentinel-3

, 2023
peer reviewedSatellite altimetry has been employed since the Skylab mission in 1973, and subsequent satellite launches have aimed to gather altimetric data.
Buendía, Raquel Navarro, Talpe, Matthieu, TABIBI, Sajad   +2 more
core   +1 more source

Precision Bounds in GNSS-R Ocean Altimetry

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2014
Peer ...
Pascual Biosca, Daniel, Camps Carmona, Adriano José, Martínez Mindeguía, Francisco, Hyuk, Park, Alonso Arroyo, Alberto, Onrubia Ibáñez, Raúl   +5 more
openaire   +2 more sources

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

, 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, Maurizio Fantino, Tahir, Muhammad, Lo Presti, Letizia, Fantino, Maurizio, Muhammad Tahir   +5 more
core   +1 more source

Leveraging the CYGNSS Spaceborne GNSS‐R Observations to Detect Ionospheric Irregularities Over the Oceans: Method and Verification

Space Weather, 2022
The Global Navigation Satellite System (GNSS) has significantly facilitated the detection of ionospheric irregularities. Nevertheless, the ground‐based GNSS stations are inhomogeneously distributed around the world with large gaps, especially in the vast
Xiaodong Ren, Hang Liu, Dengkui Mei, Pengxin Yang, Zhiyu Zhang, Mohamed Freeshah, Xiaohong Zhang   +6 more
doaj   +1 more source