Fine-Grained Building Classification in Rural Areas Based on GF-7 Data [PDF]
SensorsBuilding type information is widely used in various fields, such as disaster management, urbanization studies, and population modelling. Few studies have been conducted on fine-grained building classification in rural areas using China’s Gaofen-7 (GF-7 ...
Mingbo Liu +4 more
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Research on the Control Point Extraction Method of Chinese Gaofen 7 Satellite Using Altimeter and Footprint Camera [PDF]
EPJ Web of Conferences, 2020 Satellite laser altimetry is one of the most advanced information acquisition technologies in Earth observation system. It can provide high-accuracy elevation information, however, due to the lack of detail intensity information, its planimetric accuracy
Li Binbin +4 more
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Cloud Detection and Centroid Extraction of Laser Footprint Image of GF-7 Satellite Laser Altimetry [PDF]
Journal of Geodesy and Geoinformation Science, 2021 The laser altimeter loaded on the GaoFen-7(GF-7) satellite is designed to record the full waveform data and footprint image, which can obtain high-precision elevation control points for stereo image.
Jiaqi YAO,Guoyuan LI,Jiyi CHEN,Genghua HUANG,Xiongdan YANG,Shuaitai ZHANG
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GF-7 IMAGING SIMULATION AND DSM ACCURACY ESTIMATE [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2017 GF-7 satellite is a two-line-array stereo imaging satellite for surveying and mapping which will be launched in 2018. Its resolution is about 0.8 meter at subastral point corresponding to a 20 km width of cloth, and the viewing angle of its ...
Q. Yue, X. Tang, X. Gao
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Study on the Application of Water Resource Management Based on GF-7 Stereo Mapping Satellite [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information SciencesGF-7 satellite was successfully launched on 3 Nov 2019. The two-line stereo camera can effectively obtain 20 km-width panchromatic stereo images with resolution better than 0.8m and 3.2m-resolution multispectral images. Through the composite mapping mode
K. Liu, L. Liu, Z. Luo, Y. Gan
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Evaluation of the Emissions State of a Satellite Laser Altimeter Based on Laser Footprint Imaging [PDF]
Remote Sensing, 2022 The GaoFen-7(GF-7) satellite is equipped with China’s first laser altimeter for Earth observation; it has the capability of full waveform recording, which can obtain global high-precision three-dimensional coordinates over a wide range.
Jiaqi Yao +4 more
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Building Height Extraction Based on Satellite GF-7 High-Resolution Stereo Image [PDF]
ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information SciencesHigh-resolution remote sensing images can distinguish objects of smaller size, so as to more clearly express the texture features and structural information of objects, and provide a data source for the development of large-scale mapping, high-precision ...
Z. Tian, Y. Gong
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Combination of High-Order Modulation and Non-Binary LDPC Codes over GF(7) for Non-Linear Satellite Channels [PDF]
Electronics, 2019 High-order modulations are necessary to improve the bandwidth efficiency of the satellite communication system. However, the non-linear characteristic of satellite channels limits the application of high-order modulations. In this paper, we propose a new 7-point constellation which is expected to be effectively applied to the satellite communication ...
Yanyan Liu +3 more
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On-Orbit Performance of the GF-7 Satellite Laser Altimetry System from 2020 to 2024 [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information SciencesThe Gaofen-7 (GF-7) satellite represents China's first civil satellite equipped with a full waveform laser altimeter. This study aims to evaluate its on-orbit performance by analyzing the transmitting and receiving systems through the examination of ...
J. Peng, G. Li, G. Li, J. Chen, A. Guo
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Laser Spot Center Location Method for Chinese Spaceborne GF-7 Footprint Camera [PDF]
Sensors, 2020 The Gaofen-7 (GF-7) satellite is equipped with two area array sensor footprint cameras to capture the laser altimeter spot. In order to establish a direct correspondence between the laser data and the stereo image data, a new method is proposed to fit ...
Chaofeng Ren +4 more
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