Activate your homing beacon when you ' re ready 准备好了就发射你的归航信标
2.
My heart is sailing home 我心已归航
3.
Despite the successful homecoming , the globalflyer encountered dark moments during its flight 尽管“环球飞行者”号成功归航，但它在飞行途中也遭遇过黑暗的时刻。
4.
Homing project research of parafoil system on optimal control was developed . and the characters of it were analyzed and summarized 利用最优控制原理对翼伞系统的归航问题进行了研究,并对其特点进行了分析和总结。
5.
Us has reduced the threat level on inbound flights from britain from red to orange meaning a few more items are acceptable in carry - on 美国减少了英国归航班机的危险等级，从红色降到橙色，表明乘客的手提箱内可多放几样东西。
6.
To optimize the multi - phase homing trajectory , an improved adaptive genetic algorithm ( iaga ) was proposed , which could efficiently improve convergence speed and avoid the occurrence of premature 在对分段归航轨迹的优化中,提出了改进自适应遗传算法,该算法通过增加“强化”算子、改进对种群“早熟”程度评价指标等,有效地提高了收敛速度、避免了“早熟”现象。
7.
A multi - phase homing project was obtained , including three different homing trajectories according to the height of initial point being high , or proper , or short . and selection criterion for trajectories was also discussed 提出了翼伞系统归航轨迹的分段设计方案,按高度冗余、高度适中和欠高度三种情况给出了不同的归航轨迹分段设计方法,并且探讨了对应的判断准则。
8.
In this thesis , the problems , related with research of automatic and precise homing of parafoil system , were analyzed thoroughly and systematically in method of theoretical analysis and numerical simulation , including dynamics , trajectory design and trajectory following 本文以“实现翼伞系统自主、准确归航”为中心,采用理论分析与数值仿真相结合的方法,对翼伞系统动力学、航迹规划和跟踪控制问题进行了比较系统深入的研究,得到了若干有意义的结论。
9.
Then the traditional pd controller and gain - scheduling fuzzy pd controller were designed to realize path following of parafoil system . simultaneously , several control strategies were brought forward in view of the basic flight properties of parafoil system . the important one was described as following : the 同时,基于翼伞系统基本运动特性,提出了一系列有针对性的控制策略,其中重要的一条是,将平均风的影响在轨迹归航中修正,而大气紊流的影响作为干扰由控制器来补偿。
10.
To solve the optimal control problem , some methods about pre - solver analysis and treatment were put forward , such as moving equations translated into frame of wind and normalized . those methods not only simplified the computation , but also favored the selection of weighting coefficient , and unified the solving methods for the optimal control problem in reachable or unreachable target point 在最优控制的求解中,提出了向风坐标系转化、无量纲化等解前分析的思想,简化了计算,方便了加权因子的选择,使目标点可达与不可达的翼伞系统归航轨迹最优控制问题得到了统一的求解。
