Autonomous orbit determination and precise measurement of relative position of formation constellation;

Study on the Algorithm for Ground Position Based on Remote Sensing Image from Satellite Formation;

The second topic is: the guidance algorithm for satellite formation reconfiguration based on relative orbit elements.

Spiral control strategies in satellite formation reconfiguration were put forward and several methods such as uniform spiral, logarithmic spiral, accelerated spiral and accelerated logarithmic spiral were investigated.

SAR high azimuth resolution imaging based on formation flying satellites;

Based on the demand of relative positioning in formation flying missions,the dynamic observation geometry between the global navigation satellite systems and the formation flying satellites is analyzed.

The realization of optical sparse aperture by formation flying is a developing direction of the next generation space optical sensing.

In this paper,true anomaly of the chief satellite was taken as basic parameter,in unperturbed situation,formation flying relative dynamic equation was modeled.