A5041137661- Advanced SAR Imaging Techniques
- Synthetic Aperture Radar (SAR) Applications and Techniques
- Ocean Waves and Remote Sensing
- Microwave Imaging and Scattering Analysis
- Tropical and Extratropical Cyclones Research
- Radar Systems and Signal Processing
- Remote Sensing and Land Use
- Advanced Image Fusion Techniques
- Oceanographic and Atmospheric Processes
- Soil Moisture and Remote Sensing
- Remote-Sensing Image Classification
- Antenna Design and Optimization
- Robotic Path Planning Algorithms
- Adaptive Control of Nonlinear Systems
- Coastal and Marine Dynamics
- Millimeter-Wave Propagation and Modeling
- Geophysical Methods and Applications
- Advanced Control and Stabilization in Aerospace Systems
- Autonomous Vehicle Technology and Safety
- Ferroptosis and cancer prognosis
- Soil Geostatistics and Mapping
- Advanced Image and Video Retrieval Techniques
- GNSS positioning and interference
- Satellite Communication Systems
- Control and Dynamics of Mobile Robots
China Academy of Space Technology
2013-2025
State Key Laboratory of Remote Sensing Science
2021-2024
Zhengzhou University
2024
Commercial Aircraft Corporation of China (China)
2023
China Aerospace Science and Technology Corporation
2021
China Academy of Launch Vehicle Technology
2021
Obtaining high-precision soil organic matter (SOM) spatial distribution information is of great significance for applications such as precision agriculture. But in the current hyperspectral SOM inversion work, moisture greatly influences representation sensitive on spectrum. Therefore, a Kubelka-Munk theory based spectral correction model removal proposed to improve sensitivity SOM. Firstly, content was obtained by use physical and an unmixing method. Then, implemented quantitative...
The Gaofen-3 (GF-3) satellite is Chinas first civilian quad-polarized C-band imaging microwave that can provide high-resolution marine and land observations. Also, it China's low earth orbit remote sensing with a design life of 8 years. During the development this satellite, many major challenges have been overcome, such as complex RF channels, difficult system integration, high quantitative requirements, strict component requirements. In paper, series independent technological innovations...
The spatial resolution of Chinese Gaofen-3 (GF-3) Synthetic Aperture Radar (SAR) image, a pixel size 500 m at azimuth/flight direction for Global Observation (GLO) and 100 Wide ScanSAR (WSC) modes, is relatively coarse, waves shorter than are undetectable. In this study, SAR images collected under typhoon conditions by the GF-3 mission exploited wave retrieval purposes. detail, six imagery during 2017 2018 over China Seas captured four typhoons. GLO WSC modes collocated with simulated fields...
Abstract This study proposes the use of artificial neural network for wind retrieval with Chinese Gaofen-3 ( GF-3 ) synthetic aperture radar (SAR) data. More than 10 000 images acquired in wave mode and quad-polarization strip map were collected over global seas throughout 2-yr mission. The operated a channel—vertical–vertical (VV), vertical–horizontal (VH), horizontal–horizontal (HH), horizontal–vertical (HV). These collocated winds from European Centre Medium-Range Weather Forecasts at...
Sea surface current is a research hotspot in oceanography. Space-borne along-track interferometric synthetic aperture radar (along-track InSAR, ATI) promising sensor for measuring high-resolution sea field, and there no operational system orbit yet. To support future space-borne ATI systems, based on the experimental mode of Gaofen-3 (GF-3) satellite, first observing experiment was conducted Jiaozhou Gulf China, 2019. Meanwhile, SAR observations situ instrument measurements are obtained...
In azimuth multichannel high-resolution and wide-swath (AMC-HRWS) synthetic aperture radar (SAR) system, undersampling of signal results in the failure single-channel echo imaging, so echoes all channels should be reconstructed to obtain unambiguous SAR image. Many methods have been proposed reconstruct stationary scene echoes. However, moving targets (MTs) will cause false image, which has a great influence on image interpretation target detection, especially maritime scenes. Hence, we...
This paper unrolls some preliminary results of a spaceborne-airborne bistatic SAR experiment, conducted in October, 2020 Zhejiang, China, using GF-3 satellite as the transmitter. Some important aspects experiment are firstly introduced, including acquisition geometry, receiving system, signal synchronization and theoretical spatial resolution. Then, imaging processing flow is given, with emphasis on data synchronization. A modified BP method proposed, which suitable for direct scheme...
There are two useful methods of current measurement based on synthetic aperture radar (SAR): one is along-track interferometry (ATI), and the other Doppler centroid analysis (DCA). For ATI method, interferometric phase must be accurate enough for ocean measurements. Therefore, space-varying imbalances along range, caused by antenna center position error, attitude electronic miss pointing, pattern mismatch, reasons, cannot ignored. Firstly, this paper mainly analyzes above possible factors...
The complex permittivity of target has a crucial influence on its microwave radiation characteristics. In the quantitative research remote sensing, study dielectric properties vegetation to establish relationship between specific physical parameters and is basic work in this field. study, corn leaves samples different types heights were collected at city Zhangye which key area Heihe watershed allied telemetry experimental also largest breeding base hybrid seeds China. Then vector network...
This article investigates channel phase mismatch calibration during the application of displaced-phase-center antenna (DPCA) in dual-channel sliding spotlight synthetic aperture radar (SAR) for ground moving target indication (GMTI). In SAR, utilization beam progressive sweeping azimuth causes centers to be misaligned from sensor path, resulting between channels. Then, spatial co-registration required DPCA cannot achieved directly by an time shift. this study, a method based on scanning...
Image coregistration is a key step in tomographic SAR (TomoSAR) signal processing, and the quality of directly determines results. Traditional performed based on far-field assumption, where scattering characteristics remain constant with different look angles distances. However, for near-field TomoSAR observation, traditional method will fail because mismatch caused by change characteristics. In this study, we propose new structure-based ground-based MIMO TomoSAR. Corse structure fine...
Abstract Colorectal cancer (CRC) is the third most common worldwide and second leading cause of cancer-related death globally. Also, there still a lack effective therapeutic strategies for CRC patients owing to poor understanding its pathogenesis. Here, we analysed differentially expressed genes in identified CPNE7 as novel driver colorectal tumorigenesis. highly negatively correlated with patients’ prognosis. Upregulation promotes proliferation metastasis cells vitro vivo, vice versa....