Results 21 to 30 of about 1,035 (137)

Evaluating and Analyzing the Potential of the Gaofen-3 SAR Satellite for Landslide Monitoring

open access: yesRemote Sensing, 2022
Gaofen-3 is the first Chinese spaceborne C-band SAR satellite with multiple polarizations. The Gaofen-3 satellite’s data has few applications for monitoring landslides at present, and its potential for use requires further investigation. Consequently, we
Ningling Wen   +7 more
doaj   +1 more source

Revealing the Land Subsidence Deceleration in Beijing (China) by Gaofen-3 Time Series Interferometry

open access: yesRemote Sensing, 2023
Revealing the land subsidence in Beijing, China, induced by the massive groundwater extraction in the past three decades, is important to mitigate the hazards and protect the residences and infrastructure.
Yakun Han   +8 more
doaj   +1 more source

Design and Implementation of a Novel Polarimetric Active Radar Calibrator for Gaofen-3 SAR. [PDF]

open access: yesSensors (Basel), 2018
The Chinese first fully polarimetric space-borne synthetic aperture radar (SAR)-Gaofen-3 (GF-3) was launched in August 2016, which operates at the C-band and the resolution can reach 1 m. Polarimetric SAR calibration is a procedure that corrects the polarization distortion of a measured scattering matrix by referring to the scattering matrix of a known
Li L, Zhu Y, Hong J, Ming F, Wang Y.
europepmc   +5 more sources

Fast Vessel Detection in Gaofen-3 SAR Images with Ultrafine Strip-Map Mode. [PDF]

open access: yesSensors (Basel), 2017
This study aims to detect vessels with lengths ranging from about 70 to 300 m, in Gaofen-3 (GF-3) SAR images with ultrafine strip-map (UFS) mode as fast as possible. Based on the analysis of the characteristics of vessels in GF-3 SAR imagery, an effective vessel detection method is proposed in this paper.
Pan Z, Liu L, Qiu X, Lei B.
europepmc   +5 more sources

Direct Ocean Surface Velocity Measurement for Chinese Gaofen-3 SAR Satellite [PDF]

open access: yes2020 17th European Radar Conference (EuRAD), 2021
Spaceborne Synthetic Aperture Radar (SAR) is one important way to obtain the information of ocean surface velocity. The Doppler Centroid Anomaly (DCA) estimation, which obtain the radical velocity based on the difference between the measured Doppler centroid and the predicted Doppler centroid, have be used to most onboard spaceborne SAR. GaoFen-3 (GF-3)
Liu, Lei   +5 more
openaire   +2 more sources

Improvement and Assessment of Gaofen-3 Spotlight Mode 3-D Localization Accuracy

open access: yesRemote Sensing, 2023
The spotlight image acquired by the Gaofen-3 satellite has a resolution of 1 m, which has great potential for 3-D localization. However, there have been no public reports on the 3-D localization accuracy evaluation of Gaofen-3 spotlight synthetic ...
Nuo Chen   +4 more
doaj   +1 more source

Measuring Ocean Surface Current in the Kuroshio Region Using Gaofen-3 SAR Data

open access: yesApplied Sciences, 2021
The Kuroshio is the strongest warm current in the western North Pacific, which plays a crucial role in climate and human activities. In terms of this, the accurate acquisition of ocean surface current velocity and direction in the Kuroshio region is of ...
Yan Li   +4 more
doaj   +1 more source

Estimation of Chlorophyll-a Concentrations in Small Water Bodies: Comparison of Fused Gaofen-6 and Sentinel-2 Sensors

open access: yesRemote Sensing, 2022
Chlorophyll-a concentrations in water bodies are one of the most important environmental evaluation indicators in monitoring the water environment. Small water bodies include headwater streams, springs, ditches, flushes, small lakes, and ponds, which ...
Jiarui Shi   +9 more
doaj   +1 more source

Verification of Complex Image Based Sparse SAR Imaging Method on GaoFen-3 Dataset

open access: yesLeida xuebao, 2020
Sparse signal processing-based Synthetic Aperture Radar (SAR) imaging, also known as sparse SAR imaging, is the main research direction of sparse microwave imaging theory.
BI Hui   +3 more
doaj   +1 more source

Analysis of Wave Breaking on Gaofen-3 and TerraSAR-X SAR Image and Its Effect on Wave Retrieval

open access: yesRemote Sensing, 2023
The main purpose of our work is to investigate the performance of wave breaking and its effect on wave retrieval in data acquired from the Chinese Gaofen-3 (GF-3) synthetic aperture radar (SAR) at C-band and the German TerraSAR-X (TS-X) at X-band.
Ruozhu Zhong   +4 more
doaj   +1 more source

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