Results 51 to 60 of about 11,602,791 (361)

Novel single‐fed broadband circularly polarized antenna for GNSS applications

open access: yes, 2018
This letter presents the design of a broadband microstrip CP antenna using single‐fed technique. The feeding network is integrated within the coupling feed patch to simplify the structure.
Yun-Qi Zhang   +3 more
semanticscholar   +1 more source

Novel wide‐beam cross‐dipole CP antenna for GNSS applications

open access: yes, 2018
A wide‐beam circularly polarized (CP) cross‐dipole antenna for GNSS applications is proposed in this article. This cross‐dipole antenna is fed by a coaxial cable, on which the slots is added to optimize the impedance matching.
Yun-Qi Zhang, S. Qin, Xi Li, Li-Xin Guo
semanticscholar   +1 more source

A Proposal of a Troposphere Model in a GNSS Simulator for VANET Applications [PDF]

open access: yesSensors, 2021
Vehicle positioning is becoming an important issue related to Intelligent Transportation Systems (ITSs). Novel vehicles and autonomous vehicles need to be localized under different weather conditions and it is important to have a reliable positioning system to track vehicles.
Tropea M.   +3 more
openaire   +4 more sources

Jamming of GNNS signals [PDF]

open access: yesScientific Technical Review, 2018
GNSS technology has been used for many applications. Beside military applications, GNSS technology is used for mini UAVs - drones. One of the possible approaches for achieving anti-drone capabilities is a jamming receiver of GNSS at drone.
Pokrajac Ivan   +3 more
doaj  

Comparison and Synergy of BPSK and BOC Modulations in GNSS Reflectometry

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2020
Signals from global navigation satellite systems (GNSSs) have been advocated as opportunities for remote sensing of the Earth. In the multi-GNSS era, signals from different constellation, at different frequency, and under different modulation are ...
Jyh-Ching Juang   +2 more
doaj   +1 more source

A radio-frequency interference detector for GNSS navigation and GNSS-reflectometry applications

open access: yes2017 IEEE International Geoscience and Remote Sensing Symposium (IGARSS), 2017
Peer ...
Querol Borràs, Jorge   +4 more
openaire   +3 more sources

Sensitivity to Soil Moisture and Observation Geometry of Spaceborne GNSS-R Delay-Doppler Maps [PDF]

open access: yes, 2019
© 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   +5 more
core   +1 more source

GNSS-R: Operational Applications

open access: yes, 2003
This paper provides an overview of operational applications of GNSS-R, and describes Oceanpal, an inexpensive, all-weather, passive instrument for remote sensing of the ocean and other water surfaces. This instrument is based on the use of reflected signals emitted from GNSS, and it holds great potential for future applications thanks to the growing ...
Ruffini, G.   +4 more
openaire   +2 more sources

A Review of GNSS/GPS in Hydrogeodesy: Hydrologic Loading Applications and Their Implications for Water Resource Research

open access: yesWater Resources Research, 2022
Hydrogeodesy, a relatively new field within the earth sciences, is the analysis of the distribution and movement of terrestrial water at Earth's surface using measurements of Earth's shape, orientation, and gravitational field.
Alissa M. White   +4 more
semanticscholar   +1 more source

The applications of GNSS systems in logistics

open access: yesBudownictwo i Architektura, 2018
The development of navigation satellite systems allows them to be used in many areas of trade, services and industry. This development is strongly visible in industries related to logistics and transportation where car navigation is becoming a standard for all kinds of vehicles.
openaire   +3 more sources

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