Open AccessOverview of the GF‐7 Laser Altimeter System Mission
Author(s) -
Tang Xinming,
Xie Junfeng,
Liu Ren,
Huang Genghua,
Zhao Chenguang,
Zhen Ying,
Tang Hongzhao,
Dou Xianhui
Publication year - 2020
Publication title -
earth and space science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.843
H-Index - 23
ISSN - 2333-5084
DOI - 10.1029/2019ea000777
Subject(s) - altimeter , remote sensing , payload (computing) , satellite , elevation (ballistics) , lidar , earth observation , environmental science , ground segment , computer science , systems engineering , geology , aerospace engineering , engineering , computer security , structural engineering , network packet
The Gao Fen 7 (GF‐7) satellite is China's first submeter, high‐resolution Earth observation and remote sensing satellite for natural resource monitoring, land surveying, and other industrial applications in China. The GF‐7 laser altimeter system is the successor of the ZiYuan3‐02 (ZY3‐02 satellite) laser altimeter. The key objective of the GF‐7 laser altimetry system is to provide high‐precision ground elevation control points that assist in optical imaging to achieve 1:10000 mapping in China. This paper introduces the GF‐7 laser altimeter system payload specifications, mission objectives, in‐orbit calibration plan, data products, and service policy. In the future, the GF‐7 laser altimeter system will also serve multidisciplinary and professional applications through its precise elevation measurement capabilities. In addition, it will play a vital role in Earth observation, climate change monitoring, and environmental protection.