Results 21 to 30 of about 40,312,078 (138)

Polarimetric Calibration of the GaoFen-3 Mission Using Active Radar Calibrators and the Applicable Conditions of System Model for Radar Polarimeters

open access: yesRemote Sensing, 2019
GaoFen-3, the first polarimetric SAR satellite of China, carried out polarimetric calibration experiments using C-band polarimetric active radar calibrators (PARCs), trihedral corner reflectors (TCRs), and dihedral corner reflectors (DCRs).
Weibin Liang   +8 more
doaj   +2 more sources

An Improved Descalloping Method Combined With Imaging Parameters for GaoFen-3 ScanSAR [PDF]

open access: yesRemote Sensing, 2020
Due to the specific working mechanism of alternately transmitting and receiving signals between multiple adjacent swaths, scanning synthetic aperture radar (ScanSAR) will cause periodical wavelike modulation of the intensity image along azimuth direction,
Lihua Zhong   +3 more
doaj   +2 more sources

Pattern performance of active phased array antenna for Gaofen-3 satellite

open access: yesAlexandria Engineering Journal, 2022
The phased array antenna is one of the critical components of the space-borne SAR system and plays a key role in the quality of images. This paper focuses on the design of active phased array antenna for Gaofen-3 satellite, including its architecture ...
Fuguo Zhu   +4 more
doaj   +2 more sources

Gaofen-3 PolSAR Image Classification via XGBoost and Polarimetric Spatial Information [PDF]

open access: yesSensors, 2018
The launch of the Chinese Gaofen-3 (GF-3) satellite will provide enough synthetic aperture radar (SAR) images with different imaging modes for land cover classification and other potential usages in the next few years.
Hao Dong, Xin Xu, Lei Wang, Fangling Pu
doaj   +4 more sources

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   +2 more sources

Polarization-Enhancement Effects for the Retrieval of Significant Wave Heights from Gaofen-3 SAR Wave Mode Data

open access: yesRemote Sensing, 2023
In order to investigate the impact of utilizing multiple pieces of polarization information on the performance of significant wave height (SWH) estimation from Gaofen-3 SAR data, the extreme gradient boosting (XGBoost) models were developed, validated ...
Qiushuang Yan   +3 more
doaj   +2 more sources

Development of Wind Speed Retrieval from Cross-Polarization Chinese Gaofen-3 Synthetic Aperture Radar in Typhoons

open access: yesSensors, 2018
The purpose of our work is to determine the feasibility and effectiveness of retrieving sea surface wind speeds from C-band cross-polarization (herein vertical-horizontal, VH) Chinese Gaofen-3 (GF-3) SAR images in typhoons.
Weizeng Shao   +5 more
doaj   +2 more sources

Maritime targets classification based on CNN using Gaofen-3 SAR images [PDF]

open access: yesThe Journal of Engineering, 2019
The classification and detection of maritime targets are widely used in shipping navigation and military fields. With the development of spaceborne synthetic aperture radar (SAR) technology, more and more very high-resolution SAR images can be acquired ...
Mengyuan Ma   +3 more
doaj   +3 more sources

Wind vector retrieval from Gaofen-3 SAR imagery using the method of iterative line fitting in image power spectrum domain

open access: yesAll Earth
The Gaofen-3 (GF-3) is a Chinese Synthetic Aperture Radar (SAR) satellite primarily designed for monitoring marine dynamic environments. Compared to spaceborne scatterometers, it can monitor sea surface wind fields with higher spatial resolution ...
Xuetong Xie   +3 more
doaj   +2 more sources

Semi-Empirical Algorithm for Wind Speed Retrieval from Gaofen-3 Quad-Polarization Strip Mode SAR Data [PDF]

open access: yes, 2020
Synthetic aperture radar (SAR) is a suitable tool to obtain reliable wind retrievals with high spatial resolution. The geophysical model function (GMF), which is widely employed for wind speed retrieval from SAR data, describes the relationship between ...
Yuan, Xinzhe   +4 more
core   +1 more source

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