A5101432593- Advanced SAR Imaging Techniques
- Synthetic Aperture Radar (SAR) Applications and Techniques
- Geophysical Methods and Applications
- Landslides and related hazards
- Structural Health Monitoring Techniques
- Rock Mechanics and Modeling
- Transportation Planning and Optimization
- Simulation and Modeling Applications
- Non-Invasive Vital Sign Monitoring
- Machine Fault Diagnosis Techniques
- Hydrology and Sediment Transport Processes
- Underwater Acoustics Research
- Civil and Geotechnical Engineering Research
- Traffic control and management
- Traffic Prediction and Management Techniques
- Dam Engineering and Safety
- Electromagnetic Scattering and Analysis
- Photoacoustic and Ultrasonic Imaging
- Advanced Materials and Mechanics
- Advanced Sensor and Energy Harvesting Materials
- Calcium Carbonate Crystallization and Inhibition
Nanning Normal University
2025
Beijing Forestry University
2022
Tibet Autonomous Region People's Hospital
2021
Hefei University of Technology
2019
China University of Mining and Technology
2012-2019
Tsinghua University
2018
Under normal geological and mining conditions, surface subsidence caused by underground coal generally adheres to current theory. However, due the presence of complex structures, abnormal mining-induced deformation has become increasingly frequent. In this study, we investigate building damage excavation working face 162601 in Xinsan Mine, Fengfeng Mining District, using seven RadarSat-2 SAR images from October 2013 March 2014. The spatial distribution is identical strike F29 fault,...
This paper thoroughly investigates the occurrence of flash phenomenon in rotor targets. The is discernible targets across time and frequency domains. characterized by modulation signal amplitude through Singer function, resulting periodic peaks domain. appearance these domain corresponds to presence a corresponding band time–frequency influence interference between scattering points on phase echo investigated employing point model analytical expression as foundations. A more comprehensive...
The stability of urban rail transit lines plays an important role in the operation traffic system, and it must be monitored regularly during development construction. In this paper, 25 Sentinel-1A images are processed using Small Baseline Subset InSAR (SBAS-InSAR) technology to study ground Hefei subway line 2, revealing spatial distribution temporal evolution deformation from January 2016 April 2018. results show that most sections stable construction operation, with average rate between...
The deformation behavior of the dam foundation directly determines overall safety body, especially in impoundment period and early operation stage dam, so it is particularly important to predict study displacement foundation. In order further improve accuracy reliability prediction, VMD (Variational Mode Decomposition) used decompose monitoring time series, trend component induced are obtained. Through analysis method time-lag cross-correlation, dynamic MIC (Maximal information coefficient)...
In this paper, a rotor rotation speed estimation method is studied. Firstly, the radar micro motion echo model of wideband frequency modulated continuous wave (FMCW) established; then, matrix transformed into vector, and rough estimated by coherent integration. Secondly, real-valued inverse Radon transform (RIRT) algorithm used to estimate precise based on theory minimum image entropy. The proposed improves accuracy non-coherent integration respectively. simulation results measured data...
Abstract. Differential Synthetic Aperture Radar Interferometry (D-InSAR) as a new earth observation technique has become an important tool for monitoring ground movements caused by underground coal mining. However, the low resolution and accuracy of Digital Elevation Model (DEM) cause more error value InSAR line-of-sight(LOS) surface deformation measurement. In this paper, couple Radarsat-2 pair TerraSAR with SRTM, GDEM LiDAR DEM are processed respectively to reveal subsidence basin results...
Spectrum aliasing occurs in signal echoes when the sampling frequency does not comply with Nyquist Sampling Theorem. In this scenario, extraction of micro-motion parameters becomes challenging. This paper proposes a spectral de-aliasing method for signals based on complex-valued U-Net network. Zero interpolation is employed to insert zeros into echo, effectively increasing frequency. After zero interpolation, contains both real components and new components. Short-Time Fourier Transform...
Wenchuan Earthquake occurred in Wenchuan, Sichuan Province, China, and numerous geo-hazards broke out simultaneously landslides, collapse, debris flows pose a great threat to the security of life property earthquake hitting area. The post-earthquake geo-hazards, especially landslides will continue for years. Based on North Mountain landslide triggered by Fengxian, new monitoring principle that sliding force is greater than anti-sliding necessary sufficient condition occur put forward,...
Aiming at the problem of extracting rotor micro-motion target parameters narrowband radar, a novel parameter estimation algorithm in situation low SNR is studied. In this method, firstly, echo range unit where located after pulse compression extracted, and maximum instantaneous micro-Doppler frequency estimated by time-frequency analysis skeleton extraction. Then taken as prior information used to reduce dimension rotating speed search matrix, so two-dimensional joint blade length converted...
Abstract The development of flexible thermistor epidermal electronics (FTEE) to satisfy high temperature resolution without strain induced signal distortion is great significance but still challenging. Inspired by the nacre microstructure capable restraining stress concentration, we exemplified a versatile MXene-based elastomer sensor (TES) platform that significantly alleviated interference biomimetic laminated strategy combining with in-plane dissipation and nacre-mimetic hierarchical...