Results 31 to 40 of about 13,268,437 (192)

InSAR Baseline Estimation for Gaofen-3 Real-Time DEM Generation

Sensors, 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, Zhiyong Suo, Zhenfang Li, Jinwei Xie, Jiwei Zhao, Qingjun Zhang   +5 more
doaj   +2 more sources

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

IEEE 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, Jiale Chen, Weizeng Shao, Maurizio Migliaccio, Xingwei Jiang, Song Hu   +5 more
doaj   +2 more sources

The SAR Payload Design and Performance for the GF-3 Mission

Sensors, 2017
This paper describes the C-band multi-polarization Synthetic Aperture Radar (SAR) sensor for the Gaofen-3 (GF-3) mission. Based on the requirement analysis, the design of working modes and SAR payload are given.
Jili Sun, Weidong Yu, Yunkai Deng
doaj   +2 more sources

Observing Sea Surface Current by Gaofen-3 Satellite Along-Track Interferometric SAR Experimental Mode

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2021
Sea surface current is a research hotspot in oceanography. Space-borne along-track interferometric synthetic aperture radar (along-track InSAR, ATI) is a promising sensor for measuring high-resolution sea surface current field, and there is no ...
Xinzhe Yuan, Mingsen Lin, Bing Han, Liangbo Zhao, Wenyu Wang, Jili Sun, Weili Wang   +6 more
doaj   +2 more sources

Retrieval of Significant Wave Height in Coastal Seas of China from GaoFen-3 Satellites Based on Deep Learning

Remote Sensing
The acquisition of significant wave height (SWH) in coastal seas is significantly important to human activities. The Gaofen-3 (GF-3) satellites, comprising GF-3, GF-3B and GF-3C, are independently developed operational SAR of China, capable of providing ...
Fengjia Sun, Xing Li, Xiao-Ming Li, Yongzheng Ren, Ke Wu   +4 more
doaj   +2 more sources

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

Sensors, 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, He Yan, Lei Zhang, Weidong Yu, Yunkai Deng, Robert Wang   +5 more
doaj   +2 more sources

Design and Implementation of a Novel Polarimetric Active Radar Calibrator for Gaofen-3 SAR

Sensors, 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, Yongtao Zhu, Jun Hong, Feng Ming, Yu Wang   +4 more
doaj   +2 more sources

Radiometric Cross-Calibration of GF-4 in Multispectral Bands

Remote 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, Bo Zhong, Shanlong Wu, Qinhuo Liu   +3 more
doaj   +2 more sources

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

, 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 ...
Liu, Jie, Mihai Datcu, Lei Liu, Zhang, Qingjun, Liu, Yadong, Jie Liu, Gottfried Schwarz, Yadong Liu, Schwarz, Gottfried, Datcu, Mihai, Liu, Lei, Qingjun Zhang   +11 more
core   +1 more source

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

, 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, Zhu, Shuai, Marino, Armando, Shao, Weizeng, Sun, Jian   +4 more
core   +1 more source