Results 11 to 20 of about 5,387 (180)

Estimation and Evaluation of Zenith Tropospheric Delay from Single and Multiple GNSS Observations

open access: yesRemote Sensing, 2023
Multi-Global Navigation Satellite Systems (multi-GNSS) (including GPS, BDS, Galileo, and GLONASS) provide a significant opportunity for high-quality zenith tropospheric delay estimation and its applications in meteorology.
Sai Xia, Shuanggen Jin, Xuzhan Jin
doaj   +1 more source

Simulation of Multi-satellite GNSS Reflected Signals and Design of Simulator [PDF]

open access: yesJournal of Geodesy and Geoinformation Science, 2021
Using GNSS-R technology for remote sensing of surface parameters has become a new trend in the field of remote sensing. With the rapid development of GNSS-R technology, GNSS-R simulation has become one of the new hot spots. Now the researches of the GNSS-
Bowen LI,Dongkai YANG,Bo ZHANG
doaj   +1 more source

A Multi-Global Navigation Satellite System (GNSS) Time Transfer Method with Federated Kalman Filter (FKF)

open access: yesSensors, 2023
Relative to single Global Navigation Satellite System (GNSS) measurements, i.e., the measurements from a single GNSS system, a single GNSS code, and a single GNSS receiver, multi-GNSS measurements for time transfer could improve reliability and provide ...
Kun Liang   +3 more
doaj   +1 more source

Posicionamento multi-GNSS

open access: yesRevista Brasileira de Cartografia, 2020
GNSS (Global Navigation Satellite Systems) have gained a lot of visibility in the last two decades, being currently applied in several activities that go far beyond navigation positioning, some of them requiring high precision (centimeter to millimeter), such as structural monitoring and precision agriculture.
Paulo de Tarso Setti Júnior   +4 more
openaire   +3 more sources

Enhanced GNSS Reliability on High-Dynamic Platforms: A Comparative Study of Multi-Frequency, Multi-Constellation Signals in Jamming Environments

open access: yesSensors, 2023
The global navigation satellite system (GNSS) signals are vulnerable to disruption sources, such as signal jamming. This, in turn, can cause severe degradation or discontinuities of the GNSS-based position, navigation, and timing services.
Abdelsatar Elmezayen   +3 more
doaj   +1 more source

A Novel Method to Estimate Multi-GNSS Differential Code Bias without Using Ionospheric Function Model and Global Ionosphere Map

open access: yesRemote Sensing, 2022
Global navigation satellite system (GNSS) differential code bias (DCB) is one of main errors in ionospheric modeling and applications. Accurate estimation of multiple types of GNSS DCBs is important for GNSS positioning, navigation, and timing, as well ...
Qisheng Wang, Shuanggen Jin, Xianfeng Ye
doaj   +1 more source

Multi-GNSS processing, positioning and applications [PDF]

open access: yesJournal of Spatial Science, 2020
Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.
Odolinski, R. (author)   +2 more
openaire   +2 more sources

Tropospheric delay parameters from numerical weather models for multi-GNSS precise positioning [PDF]

open access: yesAtmospheric Measurement Techniques, 2016
The recent dramatic development of multi-GNSS (Global Navigation Satellite System) constellations brings great opportunities and potential for more enhanced precise positioning, navigation, timing, and other applications.
C. Lu   +6 more
doaj   +1 more source

Performance of Multi-GNSS Precise Point Positioning Time and Frequency Transfer with Clock Modeling

open access: yesRemote Sensing, 2019
Thanks to the international GNSS service (IGS), which has provided multi-GNSS precise products, multi-GNSS precise point positioning (PPP) time and frequency transfer has of great interest in the timing community.
Yulong Ge   +6 more
doaj   +1 more source

Performance Assessment of Positioning Based on Multi-Frequency Multi-GNSS Observations: Signal Quality, PPP and Baseline Solution

open access: yesIEEE Access, 2021
With the advances and modernization of GPS, GLONASS, BDS, Galileo and QZSS, multi-frequency and multi-system joint positioning has become the mainstream positioning and navigation.
Jinwei Bu   +4 more
doaj   +1 more source

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