Results 61 to 70 of about 524 (137)

Retrieval of soil moisture based on Gaofen-3 (GF-3) satellite synthetic aperture radar data over agricultural fields

open access: yes浙江大学学报. 农业与生命科学版
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

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
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

open access: yesSensors, 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.
Liang Li   +4 more
doaj   +1 more source

Research on Strong Clutter Suppression for Gaofen-3 Dual-Channel SAR/GMTI

open access: yesSensors, 2018
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

Evaluation of Chinese Quad-polarization Gaofen-3 SAR Wave Mode Data for Significant Wave Height Retrieval

open access: yesCanadian Journal of Remote Sensing, 2018
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

open access: yesSensors, 2018
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

Machine Learning-Based Algorithm for Gaofen-3 Wind Vector Retrieval With Assimilation by COAWST in China Seas

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
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

open access: yesRemote Sensing, 2017
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

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
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

Enhancing Road Extraction in Large-Scale Complex Terrain through Multi-Source Remote Sensing Image Fusion and Optimization

open access: yesRemote Sensing
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

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