A5100649421- GNSS positioning and interference
- Ionosphere and magnetosphere dynamics
- Geophysics and Gravity Measurements
- Advanced Frequency and Time Standards
- Inertial Sensor and Navigation
- Methane Hydrates and Related Phenomena
- Solar and Space Plasma Dynamics
- Geomagnetism and Paleomagnetism Studies
- Advanced Computational Techniques and Applications
- Turbomachinery Performance and Optimization
- Spacecraft and Cryogenic Technologies
- Indoor and Outdoor Localization Technologies
- Wireless Communication Networks Research
- Wind Energy Research and Development
- Mobile Agent-Based Network Management
- Optical measurement and interference techniques
- Nuclear Physics and Applications
- Atmospheric Ozone and Climate
- Radar Systems and Signal Processing
- Advanced SAR Imaging Techniques
- Optical Systems and Laser Technology
- Fluid Dynamics and Turbulent Flows
- Space Satellite Systems and Control
- Superconducting and THz Device Technology
- Underwater Vehicles and Communication Systems
Wenzhou Municipal Sci-Tech Bureau
2025
China University of Geosciences
2011-2024
Southern Institute of Technology
2024
Tianjin Chengjian University
2019-2024
Wuhan University
2011-2023
Chinese Academy of Sciences
2014-2023
National Time Service Center
2009-2023
University of Graz
2017-2023
University of Chinese Academy of Sciences
2012-2023
Southwest Petroleum University
2023
The development of an Australian PPP-RTK processing platform is important component a multi-GNSS (global navigation satellite system) enabled national positioning infrastructure. concept extends the precise point (PPP) by providing single-receiver users with information enabling integer ambiguity resolution, thereby reducing convergence times as compared to that PPP. In this contribution we present and discuss underlying principles for both network user. We demonstrate its GPS-based...
The formation of clathrate hydrates in pipelines is potentially threatening to exploration and gas transportation the petroleum industry. To reduce such risks, various surfactants have been explored as anti-agglomerants prevent aggregation hydrate particles. However, anti-agglomeration mechanisms are not yet fully understood. In this study, modified atomic force microscopy first developed investigate effects two surfactants, namely, 1-naphthaleneacetic acid dodecylbenzenesulfonic acid, on...
The comprehensiveness of the raw input data and effectiveness feature engineering are two key factors affecting performance machine learning. To improve for Global Navigation Satellite System Reflectometry (GNSS-R) ocean wind speed retrieval, this article introduces a new structure, which is composed Delay-Doppler maps (DDM) all satellite receiver status (SRS) parameters. Then, to overcome difficulty handcrafted effectively fusion information DDM SRS, we presented heterogeneous multimodal...
A digital elevation model (DEM) is widely recognized as the most effective representation of Earth's surface and serves fundamental platform for simulating various Earth systems. Extensive efforts have been devoted to exploring methods generating high-fidelity DEM datasets that are computationally efficient diverse applications. However, existing do not guarantee optimal surface. This study proposed a novel curvature-based geodesic centroidal Voronoi tessellation method topographic...
Compared to shallow coal seams, deep bed methane (CBM) is characterized by a higher content of free gas, which typically exhibits the traits “immediate gas production upon well startup and high output production.” It has become an important natural resource for China optimize its energy structure achieve carbon peaking neutrality goals. Cleats serve as primary pathways desorption migration in seams act weak structural planes rocks, playing crucial role controlling both...
Ionospheric delay is one of the most problematic errors in satellite-based positioning data processing. The Global Map (GIM), which publicly available daily various analysis centers, thus vitally important for users. There are variations accuracy and consistency GIMs issued by Ionosphere Associate Analysis Centers (IAACs) due to differences ionospheric modeling methods selected tracking stations. In this study on International GNSS Service’s (IGS) final GIM, total electron content (TEC)...
The Japanese Quasi-Zenith Satellite System (QZSS) is a regional navigation satellite system covering the entire Asia-Oceania region. Except for standard signals, QZSS satellites also broadcast L6E augmentation signals with real time GNSS precise orbit every 30 s and clock messages 1 s, which very important necessary Real-Time point positioning (RTPPP) applications. In this paper, MADOCA real-time services derived from were evaluated both accuracy availability compared IGS final products. To...
The FengYun-3E Global Navigation Satellite System (GNSS) occultation sounder II (FY-3E GNOS II) was launched on 5 July 2021. For the first time, based new sensor, this mission realizes radio (RO) and reflectometry observations using navigation signals from third-generation BeiDou (BDS-3), it is hence important to assess analyze BDS-3 remote sensing performances relative other systems. Here, we assessed FY-3E RO atmospheric retrievals by inter-comparing with corresponding data NCEP FNL global...
The two-step weighted least squares (TSWLS) estimator is a well-known linear approach for TDOA-base localisation. It has been applied to various applications and also widely used as benchmark in subsequent studies. In this reported work, it revealed that the approximation weighting matrix of second-step WLS crucial factor performance TSWLS, TSWLS improved simple computational attractive way through reference anchor selection co-ordinate rotation. enhanced method called turbo-TSWLS....
As global navigation satellite system (GNSS)stations are sparsely distributed in oceanic area, areas usually have lower precision than continental on a ionosphere maps (GIM). On the other hand, space-borne observations like altimetry (SA) and ionospheric radio occultation (IRO) substantial dual-frequency areas, which could be used for total electron content (TEC) retrieval. In this paper, Jason-2 SA Constellation Observing System Meteorology, Ionosphere, Climate (COSMIC) IRO products were to...
Abstract Precipitable water vapor (PWV) and ionospheric vertical total electron content (VTEC) are two essential components of space‐atmosphere parameters. The zenith troposphere delay can be converted into PWV, which plays a crucial role in meteorological studies. In the meantime, importance VTEC lies providing corrections for single‐frequency (SF) positioning, navigation, timing users. Currently, global navigation satellite system (GNSS) has become one most commonly used tools retrieving...