Results 121 to 130 of about 1,035 (137)

Mountainous Landslide Recognition Based on Gaofen-3 Polarimetric SAR Imagery

IGARSS 2019 - 2019 IEEE International Geoscience and Remote Sensing Symposium, 2019
Full-polarimetric SAR image is very useful for the landslide monitoring especially in the well vegetation-covered mountainous region. GaoFen-3 (GF-3) is the first civil C-band fully polarimetric SAR satellite in China. In order to test the ability of GF-3 full-polarimetric SAR data on landslide monitoring, 2 cases of mountainous landslide in ...
Yi Ding, Ming Liu, Suju Li, Dan Jia, Lei Zhou, Bin Wu, Yani Wang   +6 more
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Significant Wave Height Retrieval from Gaofen-3 Wave Mode Images

IGARSS 2018 - 2018 IEEE International Geoscience and Remote Sensing Symposium, 2018
Significant wave height $(H_{s})$ , is an important parameter, represented as the integration of directional wave spectra. Although many researchers have directly extracted $H_{s}$ from SAR images and got a great accuracy of retrieval, those approaches are not suitable for GF-3 SAR data. In this paper, we propose an empirical approach for SAR $H_{s}
Jing Wang, He Wang, Weizeng Shao, Jianhua Zhu, Xinzhe Yuan   +4 more
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Polarimetric Channel Misregistration Evaluation for the GaoFen-3 QPSI Mode

IEEE Geoscience and Remote Sensing Letters, 2019
This letter presents two main contributions to the data quality assessment of China’s new GaoFen-3 radar satellite. First, we observed a half-pixel misregistration between the horizontal (H) and vertical (V) transmitting channels in the azimuth direction.
Lei Shi, Pingxiang Li, Jie Yang, Liangpei Zhang, Xiaoli Ding, Lingli Zhao   +5 more
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Sea state parameters retrieval from cross-polarization Gaofen-3 SAR data

Advances in Space Research, 2020
Abstract Chinese Gaofen-3 (GF-3) synthetic aperture radar (SAR) acquired in wave mode (WV) and quad-polarization stripmap (QPS) mode default operates in quad-polarization (vertical–vertical (VV), vertical-horizontal (VH), horizontal-horizontal (HH) and horizontal-vertical (HV)) modes.
W.Z. Shao, Y.Y. Hu, G. Zheng, L.N. Cai, X.Z. Yuan, J.C. Zou   +5 more
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A Spaceborne SAR Calibration Simulator Based on Gaofen-3 Data

IGARSS 2019 - 2019 IEEE International Geoscience and Remote Sensing Symposium, 2019
Synthetic Aperture Radar (SAR) is widely used in remote sensing field, especially for the acquisition of quantitative information about the earth’s environment. Calibration processing is critical for SAR image quantitative applications. This paper proposes a spaceborne SAR calibration simulator to describe the calibration process.
Rui Zhang, Jianjun Huang, Wei Yang, Jie Chen, Yamin Wang   +4 more
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Classification of Chinese GaoFen-3 fully-polarimetric SAR images: Initial results

2017 Progress in Electromagnetics Research Symposium - Fall (PIERS - FALL), 2017
Last year, China has launched a new radar satellite on August 10th: the Chinese high spatial resolution satellite Gaofen-3 (GF-3). It is the first Chinese polarimetric imaging radar, and the only radar satellite in the Chinese High Resolution Earth Observation System.
Lu Xu, Hong Zhang, Chao Wang, Qiaoyan Fu
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Multiple mode SAR raw data simulation for GaoFen-3 mission evaluation

2017 IEEE International Geoscience and Remote Sensing Symposium (IGARSS), 2017
GaoFen-3 is China's first meter-level multi-polarization Synthetic Aperture Radar (SAR) satellite with scientific and commercial applications, which was developed by the China Academy of Space Technology (CAST) and had been launched in August, 2016.
Fan Zhang, Hanyuan Tang, Qiang Yin, Jiayin Liu, Xiaolan Qiu, Yuxin Hu   +5 more
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Preliminary Analgsis of Geometric Positioning Accuracy Based on Gaofen-3 Data

IGARSS 2019 - 2019 IEEE International Geoscience and Remote Sensing Symposium, 2019
The GaoFen-3(GF-3) satellite is the first full-polarized synthetic aperture radar (SAR) imaging satellite of china, which was launched in August 2016. This paper obtained the geographic information based on the actual data from GF-3 satellite. Range-Doppler Model is used to process GF-3 data to verify the different between the position accuracy after ...
Mengfei Yu, Fei Li, Yunkai Deng, Heng Zhang, Weidong Yu, Robert Wang   +5 more
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Water-change detection with Chinese Gaofen-3 simulated compact polarimetric SAR images

2017 SAR in Big Data Era: Models, Methods and Applications (BIGSARDATA), 2017
Gaofen-3(GF-3) satellite is the first Chinese civil C-band synthetic aperture radar (SAR) satellite launched by China Academy of Space Technology (CAST). The objective of this paper is to investigate the capability of GF-3 simulated compact polarimetric SAR data of π/4 and CTLR mode for water change detection.
Xuefei Zhang, Hong Zhang, Chao Wang
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Multimode Gaofen-3 product long-term geolocation accuracy performance

Journal of Applied Remote Sensing, 2022
Mingjun Deng, Di Wang, Xin Liu, Zhengpeng Zhang, Yin Yang   +4 more
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