A5100661809- GNSS positioning and interference
- Geophysics and Gravity Measurements
- Ionosphere and magnetosphere dynamics
- Inertial Sensor and Navigation
- Indoor and Outdoor Localization Technologies
- Robotics and Sensor-Based Localization
- Advanced Frequency and Time Standards
- earthquake and tectonic studies
- Advanced Vision and Imaging
- Geological and Geochemical Analysis
- 3D Surveying and Cultural Heritage
- High-pressure geophysics and materials
- Target Tracking and Data Fusion in Sensor Networks
- Earthquake Detection and Analysis
- Seismology and Earthquake Studies
- Robotic Path Planning Algorithms
- Advanced Measurement and Metrology Techniques
- Structural Health Monitoring Techniques
- Concrete Corrosion and Durability
- Advanced Optical Sensing Technologies
- Satellite Image Processing and Photogrammetry
- Optical measurement and interference techniques
- Geomagnetism and Paleomagnetism Studies
- Calibration and Measurement Techniques
- Advanced Algorithms and Applications
Wuhan University
2016-2025
Institute of Geodesy and Geophysics
2012-2024
Nanjing Tech University
2022-2024
WuXi AppTec (China)
2022
Guangzhou Vocational College of Science and Technology
2020
GFZ Helmholtz Centre for Geosciences
2007-2019
Chongqing Jiaotong University
2010-2017
University of Potsdam
2010-2013
Nanjing Agricultural University
2012
North China University of Technology
2008
Abstract The world of satellite navigation is undergoing dramatic changes with the rapid development multi-constellation Global Navigation Satellite Systems (GNSSs). At moment more than 70 satellites are already in view and about 120 will be available once all four systems (BeiDou + Galileo GLONASS GPS) fully deployed next few years. This bring great opportunities challenges for both scientific engineering applications. In this paper we develop a four-system positioning model to make full...
The rapid development of multi-Global Navigation Satellite Systems (GNSSs, e.g., BeiDou, Galileo, GLONASS, and GPS) the International GNSS Service (IGS) Multi-GNSS Experiment (MGEX) brings great opportunities challenges for real-time determination tropospheric zenith total delays (ZTDs) integrated water vapor (IWV) to improve numerical weather prediction, particularly nowcasting or severe event monitoring. In this paper, we develop a multi-GNSS model fully exploit potential observations from...
Abstract The recent development of the International Global Navigation Satellite Systems Service Real‐Time Pilot Project and enormous progress in precise point positioning (PPP) techniques provide a promising opportunity for real‐time determination Integrated Water Vapor (IWV) using GPS ground networks various geodetic meteorological applications. In this study, we develop new water vapor processing system based on PPP ambiguity fixing technique with satellite orbit, clock, phase delay...
The main objective of this research was to examine the feasibility Multi-GNSS precise point positioning (PPP) in precision agriculture (PA) through a series experiments with different working modes (i.e. stationary and moving) under observation conditions (e.g. open sky, buildings or canopy). For test carried out space UK, accuracy achieved 13.9 mm one dimension by PPP approach, repeatability results improved from 19.0 6.0 using respect GPS only. moving similar location almost same...
Abstract Nowadays more and high‐rate real‐time GPS data become available that provide a great opportunity to contribute earthquake early warning (EEW) system in terms of capturing regional surface displacements, as an independent information source, useful for promptly estimating the magnitude large destructive earthquake. In our study, we demonstrate performance ambiguity‐fixed precise point positioning (PPP) approach using 5 Hz collected during El Mayor‐Cucapah ( Mw 7.2, 4 April 2010). The...
Abstract The multiconstellation Global Navigation Satellite Systems (GNSS) (e.g., GPS, GLObal NAvigation System (GLONASS), Galileo, and BeiDou) offers great opportunities for real‐time retrieval of atmospheric parameters supporting numerical weather prediction nowcasting or severe event monitoring. In this study, the observations from different GNSS are combined to retrieve based on precise point positioning technique. parameters, retrieved multi‐GNSS a 180 day period about 100 globally...
Abstract The emergence of China’s Beidou, Europe’s Galileo and Russia’s GLONASS satellites has multiplied the number ionospheric piercing points (IPP) offered by GPS alone. This provides great opportunities for deriving precise global maps (GIMs) with high resolution to improve positioning accuracy monitoring capabilities. In this paper, GIM is developed based on multi-GNSS (GPS, GLONASS, BeiDou Galileo) observations in current multi-constellation condition. performance contribution...
Integer ambiguity resolution in Precise Point Positioning (PPP) can shorten convergence time and improve accuracy significantly. Uncalibrated Fractional Offsets (UFOs) originating the satellites destroy integer nature of carrier phase ambiguities observed at a single station. Several methods have been developed to estimate UFO information from reference network for PPP resolution. In this paper, we present new approach estimating Zero-Differenced (ZD) UFOs via float ZD network. approach,...