Results 41 to 50 of about 5,802 (204)

Investigation on Reference Frames and Time Systems in Multi-GNSS [PDF]

Remote Sensing, 2018
Receivers able to track satellites belonging to different GNSSs (Global Navigation Satellite Systems) are available on the market. To compute coordinates and velocities it is necessary to identify all the elements that contribute to interoperability of the different GNSSs. For example the timescales kept by different GNSSs have to be aligned.
Nicolini, L., Caporali, A.
openaire   +3 more sources

Multipath Error Fusion Modeling Methods for Multi-GNSS [PDF]

Remote Sensing, 2021
The multipath error is considered to be the most limiting factor for high precision positioning applications. The sidereal filtering (SF) method can be used to mitigate the multipath error in the observation domain, and it has been successfully applied in the multipath mitigation in global positioning systems (GPS) and regional BeiDou navigation ...
Xuan Zou, Zhiyuan Li, Yawei Wang, Chenlong Deng, Yangyang Li, Weiming Tang, Ruinan Fu, Jianhui Cui, Jingnan Liu   +8 more
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Real-Time Tropospheric Delay Retrieval from Multi-GNSS PPP Ambiguity Resolution: Validation with Final Troposphere Products and a Numerical Weather Model

Remote Sensing, 2018
The multiple global navigation satellite systems (multi-GNSS) bring great opportunity for the real-time retrieval of high-quality zenith tropospheric delay (ZTD), which is a critical quality for atmospheric science and geodetic applications.
Cuixian Lu, Xin Li, Junlong Cheng, Galina Dick, Maorong Ge, Jens Wickert, Harald Schuh   +6 more
doaj   +1 more source

Mitigation of Unmodeled Error to Improve the Accuracy of Multi-GNSS PPP for Crustal Deformation Monitoring

Remote Sensing, 2019
High-rate multi-constellation global navigation satellite system (GNSS) precise point positioning (PPP) has been recognized as an efficient and reliable technique for large earthquake monitoring.
Kai Zheng, Xiaohong Zhang, Xingxing Li, Pan Li, Xiao Chang, Jizhang Sang, Maorong Ge, Harald Schuh   +7 more
doaj   +1 more source

Integrated Precise Orbit Determination of Multi-GNSS and Large LEO Constellations

Remote Sensing, 2019
Global navigation satellite system (GNSS) orbits are traditionally determined by observation data of ground stations, which usually need even global distribution to ensure adequate observation geometry strength.
Xingxing Li, Keke Zhang, Fujian Ma, Wei Zhang, Qian Zhang, Yujie Qin, Hongmin Zhang, Yansong Meng, Lang Bian   +8 more
doaj   +1 more source

Review of Bridge Structural Health Monitoring Based on GNSS: From Displacement Monitoring to Dynamic Characteristic Identification

IEEE Access, 2021
Deformation monitoring and dynamic characteristic analysis of bridge structures are the vital and basic requirements for the safe operation of bridges.
Xinpeng Wang, Qingzhi Zhao, Ruijie Xi, Chenfeng Li, Guanqing Li, Ling'Ai Li   +5 more
doaj   +1 more source

Characterization of multi-scale ionospheric irregularities using ground-based and space-based GNSS observations

Satellite Navigation, 2021
Ionospheric irregularities can adversely affect the performance of Global Navigation Satellite System (GNSS). However, this opens the possibility of using GNSS as an effective ionospheric remote sensing tool.
YuXiang Peng, Wayne A Scales, Michael D Hartinger, Zhonghua Xu, Shane Coyle   +4 more
doaj   +1 more source

Investigation of Tightly Combined Single-Frequency and Single-Epoch Precise Positioning Using Multi-GNSS Data

Remote Sensing, 2020
The loose combination (LC) and the tight combination (TC) are two different models in the combined processing of four global navigation satellite systems (GNSSs).
Chenlong Deng, Qian Liu, Xuan Zou, Weiming Tang, Jianhui Cui, Yawei Wang, Chi Guo   +6 more
doaj   +1 more source

MULTI-GNSS PPP: An Alternative Positioning Technique for Establishing Ground Control Points

International Journal of Environment and Geoinformatics, 2020
Traditionally, ground control points (GCPs) are utilized to determine absolute image orientations indirectly in aerial triangulation. For a long time, differential and relative GNSS (Global Navigation Satellite System) positioning techniques have been ...
Berkay Bahadur, Metin Nohutçu
doaj   +1 more source

Assessing the Performance of Multi-GNSS PPP-RTK in the Local Area [PDF]

Remote Sensing, 2020
The benefits of an increased number of global navigation satellite systems (GNSS) in space have been confirmed for the robustness and convergence time of standard precise point positioning (PPP) solutions, as well as improved accuracy when (most of) the ambiguities are fixed.
Hongyang Ma, Qile Zhao, Sandra Verhagen, Dimitrios Psychas, Xianglin Liu   +4 more
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