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光电信息大讲堂第211期：Silicon-Based Mm-Wave Circuit Techniques for Communication and Radar
毫米波芯片 硅基工艺 通信芯片
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2023/4/17
毫米波具有丰富的频率资源，已逐步应用于高速通信和高精度雷达等领域。但由于硅基工艺本身的限制，采用硅基工艺实现毫米波芯片面临巨大的技术挑战。本报告讨论了硅基毫米波芯片技术的发展以及所面临的技术挑战，介绍了本课题组在解决宽带收发链路、高精度毫米波信号源和相控阵等方面的工作，并简要介绍了本课题组开发的毫米波雷达与通信芯片。
Teachers learn radar basics in LLRISE outreach program（图）
LLRISE外展计划 雷达基础知识 雷达
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2023/6/8
For high school teachers Esmeralda Hernandez and Liz Raine, radar is not a topic typically part of their curriculums. Hernandez teaches mathematics at Jubilee Brownsville High School in Brownsville, T...
GEOPHYSICAL PARAMETER RETRIEVAL FOR MICROWAVE C BAND SYNTHETIC APERTURE RADAR (SAR) DATASET USING INTEGRAL EQUATION MODEL
Microwave SAR Geophysical Parameters IEM Modelling
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2019/2/28
The microwave remote sensing is highly useful, as it provides synoptic observation of the Earth’s surface or planetary bodies, regardless of day or night and the atmospheric conditions, propagation th...
RADAR CROSS SECTION CHARACTERIZATION OF CORNER REFLECTORS IN DIFFERENT FREQUENCY BANDS AND POLARIZATIONS
Corner Reflector Radar Cross Section Trihedral Dihedral Compact Antenna Test Range Facility Calibration
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2019/2/28
Corner Reflectors (CR) are standard passive radar targets which offer one of the best solutions for SAR calibration. Radar Cross Section (RCS) of corner reflectors plays a vital role for estimation of...
ASSESSING THE CONDITION OF BURIED PIPE USING GROUND PENETRATING RADAR (GPR)
Ground Penetrating Radar (GPR) Pipe deterioration Buried utilities
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2018/11/8
The invention of Ground Penetrating Radar (GPR) technology has facilitated the possibility of detecting buried utilities and has been used primarily in civil engineering for detecting structural defec...
COMBINED VISUAL EXPLORATION OF 2D GROUND RADAR AND 3D POINT CLOUD DATA FOR ROAD ENVIRONMENTS
Ground Penetrating Radar 3D Point Cloud Infrastructure Maintenance
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2018/11/9
Ground-penetrating 2D radar scans are captured in road environments for examination of pavement condition and below-ground variations such as lowerings and developing pot-holes. 3D point clouds captur...
INFRARED ROTATION PLANE RADAR CHANGE DETECTION
Infrared Rotation Plane Radar Change Detection Depth Information Mixed Gaussian Background Modeling
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2018/5/15
The existing change detection method mainly stays on the pixel-level, which is very susceptible to light, shadow, etc. And the complex calculation and analysis for each pixel reduce the detection effi...
FLOOD EXTENT MAPPING USING DUAL-POLARIMETRIC SENTINEL-1 SYNTHETIC APERTURE RADAR IMAGERY
Flood Polarimetry SAR Radar Harvey Sentinel-1
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2018/5/14
Rapid generation of synthetic aperture radar (SAR) based flood extent maps provide valuable data in disaster response efforts thanks to the cloud penetrating ability of microwaves. We present a method...
MEASUREMENT OF SEAWARD GROUND DISPLACEMENTS ON COASTAL LANDFILL AREA USING RADAR INTERFEROMETRY
SAR SAR Interferometry Multiple-Aperture SAR Interferometry Coastal landfill Three-dimensional measurements
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2018/5/11
In order to understand the mechanism of subsidence and help reducing damage, researchers has been observed the line-of-sight subsidence on the Noksan industrial complex using SAR Interferometry(InSAR)...
EARTHQUAKE BUILDING DAMAGE MAPPING BASED ON FEATURE ANALYZING METHOD FROM SYNTHETIC APERTURE RADAR DATA
Building Damage Assessment Earthquake Emergency Feature Analysing SAR
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2018/5/11
Playing an important role in gathering information of social infrastructure damage, Synthetic Aperture Radar (SAR) remote sensing is a useful tool for monitoring earthquake disasters. With the wide ap...
SEA ICE THICKNESS MEASUREMENT BY GROUND PENETRATING RADAR FOR GROUND TRUTH OF MICROWAVE REMOTE SENSING DATA
Sea ice thickness measurement, Microwave remote sensing Ground truth Ground Penetrating Radar Brackish lake Finite-Difference Time-Domain method Dielectric constant
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2018/5/15
Observation of sea ice thickness is one of key issues to understand regional effect of global warming. One of approaches to monitor sea ice in large area is microwave remote sensing data analysis. How...
MONITORING OF HORIZONTAL MOVEMENTS OF HIGH-RISE BUILDINGS AND TOWER TRANSMITTERS BY MEANS OF GROUND-BASED INTERFEROMETRIC RADAR
Ground-based radar interferometry Horizontal movements Deformations High-rise buildings Tower transmitters
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2018/4/18
The paper describes possibilities of the relatively new technics – ground based radar interferometry for precise determining of deformation of structures. Special focus on the horizontal movements of ...
MONITORING OF HORIZONTAL MOVEMENTS OF HIGH-RISE BUILDINGS AND TOWER TRANSMITTERS BY MEANS OF GROUND-BASED INTERFEROMETRIC RADAR
Ground-based radar interferometry Horizontal movements Deformations High-rise buildings Tower transmitters
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2018/5/8
The paper describes possibilities of the relatively new technics – ground based radar interferometry for precise determining of deformation of structures. Special focus on the horizontal movements of ...
中国地质大学科学技术发展院袁悦锋(博士生），朱培民地空学院 Geophysical Research Letters，16 July 2017. The 3-D Geological Model around the Chang'E-3 Landing Site based on lunar penetrating radar Channel 1 data
三维；探月；雷达；科学；仪器
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2021/10/21
2017年7月，中国地质大学地空学院博士研究生袁悦锋与其导师朱培民教授等人于地球物理学领域国际著名期刊《Geophysical Research Letters》上发表了论文“The 3-D Geological Model around the Chang'E-3 Landing Site based on lunar penetrating radar Channel 1 data”。该文章通...
Researchers develop radar simulator to characterize scattering of debris in tornadoes
Researchers radar simulator scattering debris tornadoes
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2017/7/19
Researchers have developed the first numerical polarimetric radar simulator to study and characterize the scattering of debris particles in tornadoes. (See video)
The results of their study are publi...