圣地亚哥小组很快就以10米内的误差精确定点了反射器的位置。
The San Diego team was quickly able to pinpoint the reflector's location to within 10 meters.
研究了一种应用参数化控制求解月球探测器精确定点软着陆最优控制问题的方法。
A method of applying parametric control and enhancing technique in order to solve optimal control problem of lunar probe precise Fixed-point soft landing is studied.
文章介绍一种翼伞精确定点着陆归航的方案，按高度将归航过程划分为6个阶段，给出了每个阶段的制导算法，讨论了系统的稳定性并给出结论。
The homing progress can be divided into 6 phases by altitude. Guidance algorithm of every phase and stability of the system are discussed. Finally a conclusion is made in this paper.
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