A NOVEL PROPOSAL OF GAOFEN-3 SATELLITE CONSTELLATION FOR MULTI-APPLICATIONS
- 1Key laboratory of Geo-spatial Information Processing and Application System, Chinese Academy of Sciences, Beijing, China
- 2Institute of Electronics, Chinese Academy of Sciences, Suzhou Research Center, Suzhou, China
- 3Institute of Electronics, Chinese Academy of Sciences, Beijing, China
Keywords: Satellite constellation, Gaofen-3, SAR, Multi-applications, InSAR
Abstract. Gaofen-3 is the first C-band fully polarimetric SAR satellite in China, which is widely used in various fields such as ocean monitoring, disaster reduction and so on. In this paper, a new satellite constellation is proposed based on the orbit of Gaofen-3 satellite. The constellation includes Gaofen-3 and other two duplicates. It is able to do repeat-pass interferometry, repeat-pass differential interferometry, along-track interferometry and stereo measurement. With these abilities, it can generate the earth DEM without ground control points and have better performance in moving target identification and monitoring. The performance and the system requirements are analysed, which provides a good reference for the design of spaceborne SAR constellation.