A5090760920- GNSS positioning and interference
- Ionosphere and magnetosphere dynamics
- Advanced Frequency and Time Standards
- Geophysics and Gravity Measurements
- Inertial Sensor and Navigation
- Atomic and Subatomic Physics Research
- Advanced Computational Techniques and Applications
Chinese Academy of Sciences
2023-2024
Institute of Geodesy and Geophysics
2018-2024
State Key Laboratory of Geodesy and Earth's Dynamics
2020-2022
University of Chinese Academy of Sciences
2020-2021
Chang'an University
2017
This research is focused on searching for frequency and noise characteristics available GNSS (Global Navigation Satellite Systems). The authors illustrated stability a selected set of data from four different systems. For this purpose, 30-s-interval clock corrections were used the GPS weeks 1982–2034 (the entirety 2018). Firstly, phase (raw corrections) preprocessed shifts removal outliers; GLONASS satellites characterize smaller number outliers than BeiDou Galileo products. Secondly,...
Because of the frequency division multiple access (FDMA) technique, Russian global navigation satellite system (GLONASS) observations suffer from pseudo-range inter-channel biases (ICBs), which adversely affect clock offset estimation. In this study, GLONASS ICB is treated in four different ways: as ignorable parameters (ICB-NONE), polynomial functions (ICB-FPOL), frequency-specific (ICB-RF), and satellite-specific (ICB-RS). Data 110 international (GNSS) service stations were chosen to...
Currently, network real-time kinematic (NRTK) technology is one of the primary approaches used to achieve dynamic high-precision positioning, and virtual reference station (VRS) technology, with its high accuracy compatibility, has become most important type RTK solution. The key successful implementation lies in correctly fixing integer ambiguities extracting spatially correlated errors. This paper first introduces data processing flow on VRS server side. Subsequently, an improved...
Abstract The selection of IGS stations has been a hot topic in GPS control network processing recent years. But so far, the problem not resolved. In order to improve accuracy GNSS networks and get some conclusions for engineering applications. Thus, impacts spatial distribution number introduced are analyzed with GAMIT software. results show that software can obtain ideal both short baselines long baselines. root mean square error significantly improved after introduced. significant impact...