Results 21 to 30 of about 52,769 (226)
Comprehensive assessment of real-time precise products from IGS analysis centers
Satellite Navigation, 2022 Real-Time Precise Point Positioning (RT-PPP) has been one of the research hotspots in GNSS (Global Navigation Satellite System) community for decades. Real-time precise products of satellite orbits and clocks are the prerequisite for RT-PPP.
Bofeng Li +4 more
doaj +1 more source
Robust state and protection-level estimation within tightly coupled GNSS/INS navigation system [PDF]
Liu, S., Wang, K. & Abel, D. Robust state and protection-level
estimation within tightly coupled GNSS/INS navigation system. GPS Solut 27,
111 (2023). https://doi.org/10.1007/s10291-023-01447-z, 2021 In autonomous applications for mobility and transport, a high-rate and highly accurate vehicle-state estimation is achieved by fusing measurements of global navigation satellite systems (GNSS) and inertial sensors. The state estimation and its protection-level generation often suffer from satellite-signal disturbances in urban environments and ...
arxiv +1 more source
Sensors, 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
Satellite 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
Increase in Road Transport Safety - Way to Reduction of External Costs
Communications, 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
Sensors, 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
Performance Evaluation of Troposphere Estimated from Galileo-Only Multi-Frequency Observations
Remote 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
Galileo in Maritime Applications [PDF]
, 2021 The past decade has seen the continued growth of GPS and its many different applications. The European Union and the European Space Agency has announced the development of the European Global Navigation Satellite System - Galileo.
Christiansen, Stig Erik +5 more
core +1 more source
Remote 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
A System-Level Engineering Approach for Preliminary Performance Analysis and Design of Global Navigation Satellite System Constellations [PDF]
This is a preprint of an article published in International Review
of Aerospace Engineering (IREASE), Vol. 13, No. 3, June 2020, pp. 80-98 (OPEN
ACCESS), 2020 This paper presents a system-level engineering approach for the preliminary coverage performance analysis and the design of a generic Global Navigation Satellite System (GNSS) constellation. This analysis accounts for both the coverage requirements and the robustness to transient or catastrophic failures of the constellation. The European GNSS, Galileo,
arxiv +1 more source