Results 61 to 70 of about 524 (137)
Soil moisture is the basic condition for crop growth. A new retrieval algorithm for soil moisture was proposed based on C-band synthetic aperture radar (SAR) data from Gaofen-3 (GF-3) satellite, and soil moisture of agricultural fields with a regional scale spatial resolution of 8 m was obtained.
ZHANG Linlin +4 more
openaire +1 more source
Polarimetric Channel Imbalance Evaluation of GF-3 SAR Products by Bragg-Like Targets
Polarimetric calibration is crucial to ensure the accuracy and reliability of subsequent application results. Since Gaofen-3(GF-3) has been providing polarimetric Synthetic Aperture Radar images for six years, it is necessary to monitor the polarimetric ...
Hanglan Guo +3 more
doaj +1 more source
Design and Implementation of a Novel Polarimetric Active Radar Calibrator for Gaofen-3 SAR
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.
Liang Li +4 more
doaj +1 more source
Research on Strong Clutter Suppression for Gaofen-3 Dual-Channel SAR/GMTI
In spaceborne synthetic aperture radar (SAR), moving targets are almost buried in ground clutter due to the wide clutter Doppler spectrum and the restricted pulse repetition frequency (PRF), which increases the difficulty of moving target detection ...
Mingjie Zheng +5 more
doaj +1 more source
Our work describes the accuracy of Chinese quad-polarization Gaofen-3 (GF-3) synthetic aperture radar (SAR) wave mode data for wave retrieval and provides guidance for the operational applications of GF-3 SAR.
Shuai Zhu +8 more
doaj +1 more source
InSAR Baseline Estimation for Gaofen-3 Real-Time DEM Generation
For Interferometry Synthetic Aperture Radar (InSAR), the normal baseline is one of the main factors that affects the accuracy of the ground elevation. For Gaofen-3 (GF-3) InSAR processing, the poor accuracy of the real-time orbit determination results in
Huan Lu +5 more
doaj +1 more source
This study develops a novel machine learning-based algorithm for retrieving wind vectors from Gaofen-3 (GF-3) synthetic aperture radar (SAR) imagery. In addition, we explore the assimilation of SAR-derived wind fields with the Coupled Ocean-Atmosphere ...
Lu Liu +5 more
doaj +1 more source
Radiometric Cross-Calibration of GF-4 in Multispectral Bands
The GaoFen-4 (GF-4), launched at the end of December 2015, is China’s first high-resolution geostationary optical satellite. A panchromatic and multispectral sensor (PMS) is onboard the GF-4 satellite.
Aixia Yang +3 more
doaj +1 more source
GaoFen-3 Mission for InSAR Time Series Analysis: A Quantitative Evaluation
GaoFen-3 (GF-3) is China's first civilian high-resolution synthetic aperture radar (SAR) satellite mission. Since its launch in 2016, GF-3 has achieved remarkable success in various SAR application fields.
Yuxiao Qin +7 more
doaj +1 more source
In large-scale remote sensing scenarios characterized by intricate terrain, the straightforward road imaging features in synthetic aperture radar (SAR) images make them susceptible to interference from other elements such as ridges, compromising the ...
Longqiang Fu, Huiming Chai, Xiaolei Lv
doaj +1 more source

