The problem of control benchmark is solved by the use of HPOP, and the problem of constant thrust control is solved by H control theory and PWPF modulator.
本文利用卫星精密轨道预报的结果作为基准轨道，解决了控制基准的问题；利用H_∞ 控制理论和 PWPF调制器解决了轨控小发动机常推力控制问题。
参考来源 - 军用侦察卫星星座技术研究·2,447,543篇论文数据，部分数据来源于NoteExpress
而直接推力控制可以降低这些裕度，充分发挥发动机的性能。
Direct control of the thrust can reduce these margins and exploit potential performance of the engine.
对适合直线电机直接推力控制的方法进行理论分析和实验研究。
Direct thrust force control method for the linear motor in theory and experiment has been further studied.
其中长周期运动控制律设计时，结合了喷气推力控制来辅助偏置动量控制；
When design the control method of long-time cycle movement, whiff thruster is used to assistant the control system.
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