The design of an interferometry SAR (INSAR) earth observation mission using formation flying satellites

摘要

This paper introduces the conceptual design of a real-time Interferometry SAR mission with formation flying satellites, which is almost impossible in the conventional way. 6 SAR satellites forming in a circle at an altitude of 577 km can achieve real-time INSAR earth observation. Ordinarily the satellites keep circular formation and make Digital Elevation Map (DEM). But once a disaster happens anywhere on the earth, the satellites will change their orbit into the regression one and observe it in high frequency or high-resolution lode. The result or the conceptual design and the necessary theory confirms the feasibility of this mission in terms of technique and cost.