Two impulsive control strategys for formation keeping were put forward with regard to the problem that satellites formation could be destroyed under J2 perturbation.
针对卫星编队轨道构形在J2摄动干扰作用下被破坏的问题，给出了两种构形保持脉冲控制策略。
The robust precise formation keeping of the DSS was realized based on the control law, and the conflict between control time and control precision was conquered using the control law.
提出了基于切换增益衰减因子的变切换增益变结构控制律，实现了高精度的分布式卫星构型保持鲁棒控制，较好地克服了误差收敛时间和控制精度的矛盾；
It was showed that PPT was a kind of advanced propeller with small thrust, which was suitable to orbit transfer, attitude control, station keeping and formation flying for small and micro satellite.
分析认为PPT是一种先进的小推力动力装置，特别适合于微小卫星的轨道转移、姿态控制、位置保持以及星座编队飞行。
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