On August 20, China's high-resolution earth observation system Gaofen-7 satellite was officially put into use. As China’s first civil sub-meter optical transmission type 3D surveying and mapping satellite, the launch of the satellite marks the initial formation of the space-based earth-based observation capabilities of high spatial resolution, high temporal resolution, and high-precision observation created by Gaofen Special Project. It will further meet the data needs of users in basic surveying and mapping, global geographic information assurance, urban and rural construction monitoring and evaluation, and agricultural survey statistics.
The Gaofen-7 satellite was successfully launched on November 3, 2019. The satellite is equipped with payloads such as dual-line array stereo cameras and laser altimeters. It breaks through sub-meter stereo mapping camera technology and can obtain high spatial resolution optical stereo Observation data and high-precision laser altimetry data.
This project is the world's first satellite project that uses a two-line array + laser altimetry system to achieve 1:10000 stereo mapping, which has greatly improved the level of China's satellite earth observation and stereo mapping. The satellite can not only meet the relevant data needs of Chinese domestic users, but also provide powerful spatial information support for countries along the "Belt and Road", which is of great significance to serve economic and social development and enhance China's aerospace international influence. (Reporter Guo Chaokai edited Chi Hanyu)
Editor in charge: [Ji Xiang]