A5045988979- GNSS positioning and interference
- Geophysics and Gravity Measurements
- Synthetic Aperture Radar (SAR) Applications and Techniques
- Inertial Sensor and Navigation
- Soil Moisture and Remote Sensing
- Cryospheric studies and observations
- Advanced SAR Imaging Techniques
- Ionosphere and magnetosphere dynamics
- Remote Sensing and Land Use
- Indoor and Outdoor Localization Technologies
- Remote-Sensing Image Classification
- Landslides and related hazards
- Oceanographic and Atmospheric Processes
- Ocean Waves and Remote Sensing
- Flood Risk Assessment and Management
- Target Tracking and Data Fusion in Sensor Networks
- Hydrology and Watershed Management Studies
- Arctic and Antarctic ice dynamics
- Geomagnetism and Paleomagnetism Studies
- Geophysical Methods and Applications
- Image and Signal Denoising Methods
- Advanced Computational Techniques and Applications
- Planetary Science and Exploration
- Advanced Image Fusion Techniques
- Environmental Changes in China
Hohai University
2016-2025
Beijing Aerospace Flight Control Center
2019-2022
University of Waterloo
2011
Nanjing Forestry University
2011
Nanchang Institute of Technology
2007
Taiyuan University of Technology
2005
Beijing Institute of Technology
2005
Hong Kong Polytechnic University
1998
On 1 May 2020, the Sardoba Reservoir in Uzbekistan breached its western wall, and uncontrolled release of water caused casualties, environmental damages economic losses. We investigate dam failure based on three sets Earth observation data, including: (i) satellite altimetry products, i.e., ICESat-2 with aim understanding topographic features study area; (ii) multi-geometry Sentinel-1 SAR data to retrieve pre-failure deformation along vertical horizontal east-west directions between 2017...
The lunar nearside has been investigated by many uncrewed and crewed missions, but the farside of Moon remains poorly known. Lunar exploration is challenging because maneuvering rovers with efficient locomotion in harsh extraterrestrial environment necessary to explore geological characteristics scientific interest. Chang’E-4 mission successfully targeted Moon’s deployed a teleoperated rover (Yutu-2) inside Von Kármán crater, conveying rich information regarding regolith, craters, rocks....
ABSTRACT The estimation of large‐scale evapotranspiration ( ET ) is complex, and typically relies on the outputs land surface models LSMs or remote sensing observations. However, over some regions Africa, inconsistencies exist between different estimations fluxes, which should be investigated. In this study, we evaluate combine estimates from moderate‐resolution imaging spectroradiometer MODIS ), Global Land Data Assimilation System GLDAS terrestrial water budget TWB approaches Volta Basin,...
Aimed at mapping time variations in the Earth’s gravity field, Gravity Recovery and Climate Experiment (GRACE) satellite mission is applicable to access terrestrial water storage (TWS), which mainly includes groundwater, soil moisture (SM), snow. In this study, SM accumulated snow equivalent (SWE) are simulated by Global Land Data Assimilation System (GLDAS) land surface models (LSMs) then used isolate groundwater anomalies from GRACE-derived TWS Pennsylvania New York States of Mid-Atlantic...
Deformation monitoring plays an important role in performance to ensure the reservoir dams and embankments are functioning as designed. This work should be first deformation application of GNSS China's huge South-to-North Water Diversion Project. A system, equipped with 4G data transmission automated processing software, is established at Shuangwangcheng Reservoir, regulation control project on Eastern Route. Precision evaluations different observation sessions from both GPS BDS conducted,...
The atmospheric effect represents one of the major error sources in Interferometric Synthetic Aperture Radar (InSAR), and its mitigation is found crucial for high-precision InSAR applications. Numerous studies on correction methods applications covering a wide range regions worldwide have been reported with varying degrees success. However, more efforts performance assessment are needed, conclusions may lack statistical significance due to limited interferograms involved most these analyses....
The power budget analysis is considered for signal detection in bistatic synthetic aperture radar, with global navigation satellite systems acting as non-cooperative transmitters. analysed against thermal noise, addition to interferences introduced by the transmitting satellites sharing same frequency bands. Two basic configurations are considered: radar receiver on an aeroplane; and positioned stationary ground.
Brazil has recently experienced one of its worst droughts in the last 80 years, with wide-ranging consequences for water supply restrictions, energy rationing, and agricultural losses. Northeast Southeast Brazil, which share São Francisco River basin (SFRB), have serious precipitation reduction since 2011. We used terrestrial water-storage (TWS) fields, inverted from Gravity Recovery Climate Experiment (GRACE) mission measurements, to assess quantify ongoing drought over SFRB. found a loss...
Earth observation technologies have great potential in the investigation, monitoring and assessment of various geohazards. Stacking is an efficient InSAR method for estimating deformation rates helps generation update geohazard inventories. However, it relies on assumption that atmospheric statistics are stationary, which does not always hold large-scale interferograms processing. The nonstationary signal, caused by turbulence stratification atmosphere, will bias estimate lead to...
Outliers and multipath effects significantly affect the positioning accuracy reliability of global navigation satellite system (GNSS), which must be handled properly in real-time kinematic (RTK) positioning, especially for low-cost devices. In this study, an extended robust estimation method (EIGG3) considering is proposed RTK positioning. The carrier-to-noise power density ratio (C/N0) template function introduced, then shrinking factor bifactor equivalent weight proposed, where one...
The measurement of total basin discharge along coastal regions is necessary for understanding the hydrological and oceanographic issues related to water energy cycles. However, only observed streamflow (gauge-based observation) used estimate fluxes from river ocean, neglecting portion that infiltrates underground directly discharges into ocean. Hence, aim this study assess Yangtze River (Chang Jiang) basin. In study, we explore potential response changes in precipitation (from Tropical...
The purpose of this study was to examine how different polarimetric parameters and an object-based approach influence the classification results various land use/land cover types using fully ALOS PALSAR data over coastal wetlands in Yancheng, China. To verify efficiency proposed method, five other classifications (the Wishart supervised classification, method without parameters, analysis, textural geometric information nearest-neighbor classifier) were applied for comparison. indicated that...
This paper describes GPS multi-antenna device (one receiver links multiple antennas) developed by authors, and the experimental results are presented. has already proven to be an efficient tool for monitoring dam deformations stability of high-risk slopes. It offers greater accuracy than other surveying techniques. However, its disadvantages when employing slope monitoring. The major drawback been high cost due large-scale deployments required in sites. conventional methods, where a...
In an airborne laser bathymetry system, the full-waveform echo signal is usually recorded by discrete sampling. The accuracy of recognition and amount effective information that can be extracted conventional methods are limited. To improve validity reliability data to extract more better understand water reflection characteristics, we select portion original waveform for further research, suppress random noise, decompose selected progressively using half-wavelength Gaussian function with...
Water vapor is one of the most variable atmospheric constituents. Knowledge both spatial and temporal variations water very important in forecasting regional weather understanding global climate system. The Moderate Resolution Imaging Spectroradiometer (MODIS) first space instrument to obtain precipitable (PWV) with near-infrared (nIR) bands traditional IR bands, which provides an opportunity monitor PWV wide coverage during daytime nighttime. However, accuracy measurements obtained much...
The utilization of advanced remote sensing methods to monitor the coastal wetlands is essential for conservation and sustainable development. With multiple polarimetric channels, synthetic aperture radar (PolSAR) increasingly employed in land cover classification information extraction, as it has more scattering than regular SAR images. Polarimetric decomposition often used extract from SAR. However, distinguishing all types using only one complex ecological environments such not easy, thus...