Results 21 to 30 of about 17,319 (249)

Helmert Variance Component Estimation for Multi-GNSS Relative Positioning [PDF]

open access: yes, 2020
The Multi-constellation Global Navigation Satellite System (Multi-GNSS) has become the standard implementation of high accuracy positioning and navigation applications.
Fang, Zhenlong   +5 more
core   +2 more sources

Validation of the Accuracy and Convergence Time of Real Time Kinematic Results Using a Single Galileo Navigation System

open access: yesSensors, 2018
For the last two decades, the American GPS and Russian GLONASS were the basic systems used in global positioning and navigation. In recent years, there has been significant progress in the development of positioning systems.
Zbigniew Siejka
doaj   +1 more source

Performance Evaluation of Troposphere Estimated from Galileo-Only Multi-Frequency Observations

open access: yesRemote Sensing, 2020
The tropospheric delays estimated from the Global Navigation Satellite System (GNSS) have been proven to be an efficient product for monitoring variations of water vapor, which plays an important role in meteorology applications.
Lewen Zhao   +2 more
doaj   +1 more source

Increase in Road Transport Safety - Way to Reduction of External Costs

open access: yesCommunications, 2005
Satellite navigation and prepared navigation system Galileo is the key technology that has to open the gate to new applications. It has to ensure Europe to not be too dependent (in term of economic and safety) on nonmember states of EU, to establish new ...
Alica Kalasova
doaj   +1 more source

Characteristics of Onefold Clocks of GPS, Galileo, BeiDou and GLONASS Systems

open access: yesSensors, 2021
This research is focused on searching for frequency and noise characteristics for available GNSS (Global Navigation Satellite Systems). The authors illustrated frequency stability and noise characteristics for a selected set of data from four different ...
Qingsong Ai   +3 more
doaj   +1 more source

System engineering approach applied to Galileo system [PDF]

open access: yes, 2010
Developing a localization system, with more precise performances than GPS that guarantees Europe autonomy is a complex challenge that ESA and a large number of European economical actors of space industry were decided to meet.
Bouchired, Steven   +1 more
core   +1 more source

SNR degradation in GNSS-R measurements under the effects of radio-frequency interference [PDF]

open access: yes, 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 ...
Alonso Arroyo, Alberto   +5 more
core   +2 more sources

Estimation of fractional cycle bias for GPS/BDS-2/Galileo based on international GNSS monitoring and assessment system observations using the uncombined PPP model

open access: yesSatellite Navigation, 2021
The Fractional Cycle Bias (FCB) product is crucial for the Ambiguity Resolution (AR) in Precise Point Positioning (PPP). Different from the traditional method using the ionospheric-free ambiguity which is formed by the Wide Lane (WL) and Narrow Lane (NL)
Jin Wang, Qin Zhang, Guanwen Huang
doaj   +1 more source

Initial Assessment of Galileo Triple-Frequency Ambiguity Resolution between Reference Stations in the Hong Kong Area

open access: yesRemote Sensing, 2021
The European Global Navigation Satellite System Galileo is gradually deploying its constellation. In order to provide reliable navigation and position services, the effectiveness and reliability of ambiguity resolution between reference stations is ...
Yangyang Li   +7 more
doaj   +1 more source

Cross-talk statistics and impact in interferometric GNSS-R [PDF]

open access: yes, 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 ...
Alonso Arroyo, Alberto   +5 more
core   +2 more sources

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