Results 201 to 210 of about 3,413 (220)
Multichannel Sliding Spotlight SAR Imaging: First Result of GF-3 Satellite
IEEE Transactions on Geoscience and Remote Sensing, 2021 This paper demonstrates the first experiment of Gaofen-3 (GF-3) satellite operated in dual-channel sliding spotlight mode. First, the raw data of two channels need to be preprocessed, including channel error correction and signal reconstruction, so that it can be focused by the subsequent conventional single-channel sliding spotlight mode imaging ...
Tingzhu Fang +6 more
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The preliminary results about positioning accuracy of GF-3 SAR satellite system
2017 IEEE International Geoscience and Remote Sensing Symposium (IGARSS), 2017 GF-3 is the Chinese Synthetic Aperture Radar (SAR) satellite mission with scientific and commercial applications, which was launched in August, 2016. In this paper, various error sources about system position are analyzed based on real data of GF-3 satellite. The results show that satellite positioning accuracy is less than 4m.
Jiayin Liu +4 more
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GF-3 data real-time processing method based on multi-satellite distributed data processing system
Journal of Central South University, 2020 Due to the limited scenes that synthetic aperture radar (SAR) satellites can detect, the full-track utilization rate is not high. Because of the computing and storage limitation of one satellite, it is difficult to process large amounts of data of spacebome synthetic aperture radars.
Jun Yang +4 more
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An ISAR Approach for Refocusing the Maritime Moving Targets With the GF-3 SAR Satellite
2019 6th Asia-Pacific Conference on Synthetic Aperture Radar (APSAR), 2019 Moving ship targets are always defocused in synthetic aperture radar (SAR) images under the influence of self-motion and sea waves. Inverse SAR (ISAR) technique is commonly used to focus non-cooperative targets by motion compensation. A novel refocusing method, improved rank one phase estimation (IROPE), is proposed in this paper.
Zhishuo Yan +4 more
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Automated ortho-rectified SAR image of GF-3 satellite using Reverse-Range-Doppler method
2016 IEEE International Geoscience and Remote Sensing Symposium (IGARSS), 2016 GF-3 is the Chinese Synthetic Aperture Radar (SAR) satellite mission with scientific and commercial applications, which will be launched in 2016. The ortho-rectification image combined with the DEM data can only be satisfied with the applications of the high resolution radar image, the data quantity with wide-breadth also put forward higher request to ...
Jiayin Liu, Xiaolan Qiu, Wen Hong
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The Dual-Aspect Geometric Terrain Correction Method Using GF-3 Satellite Data
IGARSS 2019 - 2019 IEEE International Geoscience and Remote Sensing Symposium, 2019 The GF-3 satellite is the first full-polarization SAR satellite in China, which operates in the C band with a resolution of 1m. This paper presents a dual-aspect geometric terrain correction method to overcome the inherent shortages of SAR image such as foreshortening, shadow and layover.
Jiayin Liu +4 more
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Study on geo-location of sliding spotlight mode of GF-3 satellite
2015 IEEE 5th Asia-Pacific Conference on Synthetic Aperture Radar (APSAR), 2015 GF-3 is the Chinese Synthetic Aperture Radar (SAR) satellite mission with scientific and commercial applications, which will be launched in 2016. It allows operation in Stripmap, ScanSAR and Sliding Spotlight modes in different polarizations. The Sliding Spotlight Mode is a new imaging mode widely used in high resolution SAR imaging.
Jiayin Liu +3 more
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2019 6th International Conference on Information Science and Control Engineering (ICISCE), 2019 In this paper, two typical demonstration areas were selected in Shanxi Province for deformation monitoring of geological disasters likely to happen to the characteristic power passageways in Shanxi demonstration area with domestic GF-3 SAR satellite data and interferometric SAR technique.
Wenhao Ou +5 more
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Acta Oceanologica Sinica, 2020 The study of the characteristics of internal solitary waves happened in the Malacca Strait is an urgent problem for submarine, ship navigation and marine engineering. Based on SAR remote sensing data obtained from the high spatial resolution Sentinel-1 and GF-3, the internal solitary wave characteristics of the Malacca Strait are investigated.
Jing Ning +4 more
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2019 6th Asia-Pacific Conference on Synthetic Aperture Radar (APSAR), 2019 Gaofen-3 (GF-3) is the first Chinese multichannel synthetic aperture radar (SAR) sensor that can operate in the dual receive channel (DRC) mode. Different from the traditional single-channel SAR system, the multichannel SAR system can overcome the inherent limitation to achieve high-resolution and wide-swath (HRWS) at the same time.
Junying Yang +5 more
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