A5009316585- Electromagnetic Scattering and Analysis
- Advanced Antenna and Metasurface Technologies
- Electromagnetic Simulation and Numerical Methods
- Geophysical Methods and Applications
- Soil Moisture and Remote Sensing
- Optical Systems and Laser Technology
- Climate change and permafrost
- Microwave Engineering and Waveguides
- Advanced SAR Imaging Techniques
- Surface Roughness and Optical Measurements
- Precipitation Measurement and Analysis
- Photonic and Optical Devices
- Advanced Neural Network Applications
- Radio Wave Propagation Studies
- Ocean Waves and Remote Sensing
- Optical measurement and interference techniques
- Microwave Imaging and Scattering Analysis
- Metamaterials and Metasurfaces Applications
- Cryospheric studies and observations
- Non-Destructive Testing Techniques
- Laser-induced spectroscopy and plasma
- Additive Manufacturing Materials and Processes
- Environmental Changes in China
- Millimeter-Wave Propagation and Modeling
- Electromagnetic Compatibility and Measurements
Jiangsu Key Laboratory of 3D Printing Equipment and Manufacturing
2025
Nanjing Normal University
2025
Anhui University
2017-2024
Northeastern University
2022-2024
Xidian University
2010-2022
North China University of Technology
2017
National Administration of Surveying, Mapping and Geoinformation of China
2015
State Key Laboratory of Remote Sensing Science
2013
Chinese Academy of Sciences
2013
Capital Normal University
2012
Abstract—Based on message passing interface (MPI) of the PC Clusters, parallel method moment (MOM) is applied to electromagnetic (EM) scattering from one dimensional (1-D) large scale PEC Gaussian rough surface with two (2-D) cylinder above it low grazing incidence. The conjugate gradient (CGM) for solving MOM matrix equation parallelized according property MPI in this work. computational efficiency and validity are shown by several numerical simulations, which proved that proposed supplies...
Environmental perception technology is key to self-driving. Nowadays, this mostly conducted using cameras and LiDAR, despite their poor immunity interference high price. The millimeter-wave radar can solve these problems, but the current radar-based models suffer from over-complexity global modeling capability. Moreover, anti-interference capability of object detection (ROD) techniques in complex environments also a major challenge. Considering this, article proposes novel model called...
An efficient multiregion model is extended by the single integral equation (SIE) method for first time to calculate electromagnetic (EM) scattering from a dielectric rough surface with or without perfectly electric conducting target above it. In model, divided into multiple regions depending on their positions along and energy distribution of incident wave. Two intermediate are chosen as dominant in which moment adopted. If located surface, also included region. Hence, new can markedly...
The study of the interaction between moving plasma-coated objects and electromagnetic (EM) waves is essential factor for EM problems high-speed targets. In this paper, physical model a dispersive medium developed based on principle special relativity to properties targets coated with plasma sheath. First, Lorentz transform used introduce incident plane wave into frame. Second, proposed model, are solved in frame by shift-operator (SO) FDTD numerical algorithm. Finally, results further...
An efficient multiregion model is introduced to calculate the electromagnetic scattering from a perfectly electrical conducting (PEC) rough surface with or without PEC target above it. In model, split into multiple regions depending on their position along surface. Two intermediate are chosen as dominant region. If located surface, will also be included in The method of moments (MOM) only adopted region ensure validity. Hence, new can greatly reduce number unknowns associated full MOM...
The face-centered cube (FCC) grid has more sampling points than the traditional Yee cell (as it contains a total of 14 points, which six are center and eight vertices, each point three field components). Thus, FCC is better former in dealing with dispersion error anisotropic media. On basis this feature, article first derived FCC-finite-difference time-domain (FDTD) iterative formula for nonuniform plasma on verifies accuracy algorithm. This algorithm combined flow model hypersonic vehicles,...
With the advancement of environmental perception technology, millimeter-wave (mmWave) radar is emerging as a predominant sensor. While deep learning has facilitated development mmWave object detection (ROD) techniques, ROD suffers from datasets because annotation inherently more complex. Motivated by masked image modeling (MIM), this article proposes novel pretraining method for to address limitations posed datasets. This study conducts masking operations on images both spatial and temporal...
Electromagnetic (EM) scattering from a stack of two rough interfaces separating homogeneous medium with perfectly electric conducting (PEC) object has been calculated through the method moments for vertical polarization. Theoretical formulations EM multi-layered PEC have derived in detail and total fields their normal derivatives on are solved. The two-layered model is special case. In this work, Gaussian surface was applied to simulate interface. A cylinder located above, between or below...
The retrieval of soil moisture from passive microwave remote-sensing data is presently one the most effective methods for monitoring moisture. However, spatial resolution products generally low; thus, existing should be downscaled in order to obtain more accurate data. In this study, we explore theoretical feasibility applying spectral downscaling method generate high based on both Moderate Resolution Imaging Spectroradiometer and Fengyun-3B (FY3B) We analyse characteristics images covering...
The higher order method of moments (HMOM) has been proposed to calculate the bistatic scattering from two-dimensional (2D) perfectly electric conducting (PEC) rough surface in this paper.The field integral equation (EFIE) is solved through HMOM with hierarchical basis functions which are modified Legendre polynomials.The non-uniform rational B-spline (NURBS) applied model plane related surface.Validity approach shown by comparing coefficient (BSC) that lower MOM (LMOM) Rao-Wilton-Glisson...
Millimeter-wave radar semantic segmentation has proven successful in autonomous driving environment perception tasks. However, relying solely on range-angle (RA) images excludes Doppler information, which is crucial for dynamic target recognition. Despite various fusion method proposals, they consistently encounter issues with interfering RA information and poor results. We introduce a novel learnable-query-guided multi-scale network (LQCANet) segmentation, leveraging learnable-query...
An efficient method for simulating electromagnetic scattering from a dielectric rough surface over frequency band is proposed. The based on the Chebyshev series and Maehly approximation. tapered plane wave chosen as incident to avoid artificial edge diffraction caused by finite length of simulated surface. Gaussian considered. Good agreement between approximation exact results obtained moments (MoM) found. numerical show that superior MoM in terms CPU time required.
The asymptotic waveform evaluation (AWE) technique combined with the scalar integral equation and tapered plane wave is chosen to fast simulate electromagnetic scattering from rough surface over a frequency band under horizontal (H) polarization in this paper. energy narrow beam as incident avoid artificial edge diffraction due finite length of simulated surface. And used obtain unknowns along induced by wave. validity efficiency AWE are shown comparing repeated calculation at every finer...