Using K Means which can automatically cluster trajectories, a new algorithm based on trajectory space similarity distance is presented, and it is applied to classify trajectory.
应用K均值自动聚类算法，提出了一种新的基于轨迹空间相似距离的轨迹分类算法，对以上获得的有效轨迹进行分类。
In his theory of general relativity, Einstein realized that space and time can stretch and warp in ways that change the trajectory of light.
爱因斯坦在他的广义相对论中认识到，可以以改变光轨迹的方式对时间和空间进行拉伸和弯曲。
This craft would be able to derail any incoming comets or other outer-space projectiles that might be hurtling towards Earth, and change their trajectory just enough that they miss us.
这种飞行器能够让任何接近中的彗星或其他可能飞奔至地球而来的太空抛射物体脱轨，并改变它们的运行轨道使其足以偏离地球。
November 13，1971， The American space probe, Mariner 9, has become the first spacecraft to orbit another planet, swinging into its planned trajectory around Mars without a hitch.
1971年的11月13日，美国宇宙飞船水手九号顺利进入火星的计划轨道飞行，成为首架环绕另一颗行星飞行的宇宙飞船。
Wheeling about to line up on a northeasterly trajectory, Atlantis accelerated through a partly cloudy sky, on course for a docking with the space station around noon Wednesday.
亚特兰蒂斯号沿着向东北方向的轨迹，加速飞入多云的天空，沿着预订轨道在星期三下午与国际空间站对接。
Whatever bumps along the trajectory there may be, I am confident that NASA’s support for commercial companies will prove to be critical to humanity’s future in space.
无论一路走来要历经多少坎坷，我都坚信美国宇航局给予商业公司的支持将证实对人类太空[探索]前景至为关键。
In the fifth and sixth chapter, trajectory tracking control in inertia space of the dual-arm space robot system is studied.
在第五章和第六章中，对双臂空间机器人系统在惯性坐标系内进行轨迹跟踪控制问题进行研究。
By using the line of sight (LOS) measurements from space based infrared sensors, free flight phase trajectory estimation problem of ballistic missile is studied.
主要研究空间预警系统利用星载红外传感器的视线测量估计弹道导弹自由飞行段弹道的问题。
This paper applies the technique of constrained trajectory propagation and optimal theory to design the autolanding trajectory for a space shuttle.
采用沿约束轨迹的推演计算方法及优化原理对航天飞机自动着陆飞行轨迹进行优化设计。
When the energy is increased to the saddle point energy, nearly all the phase space trajectory is chaotic.
当能量增加到鞍点能时，几乎所有的相空间轨迹都是混沌的。
In this paper, an effective geometry-graphics method based on Euclid space for welding robot collision-free trajectory planning is studied.
研究解决了基于工作空间焊接机器人无碰撞轨迹规划问题的有效途径几何图形法。
The trajectory planning of robot can be done in joint space coordinate and Cartesian space coordinate.
机器人的轨迹规划可以在关节空间中进行，也可以在直角坐标空间中进行。
According to the design and analysis of global intercept trajectory, the possibility of straightly impacting space target is verified, and the terminal guidance is analysed and calculated.
通过全程拦截弹道的设计与计算，验证了与空间目标直接碰撞的可能性，对末制导做了分析与计算。
In the first stage, trajectory planning is performed on image plane. Planned discrete points on image plane are then mapped to robotic joint space.
第一阶段在图像平面上规划运动轨迹，在图像平面上得到的离散规划点映射到机器人关节空间。
You know, to fly you don't need to follow a straight trajectory, but can go through multidimensional space?
你知道，可以不必沿着一条时间线飞行，但是可以穿过多维时空？
The task space trajectory planning for robots is reviewed and analyzed based on the geometric structure of task space.
本文从机器人任务空间的几何结构出发，对任务空间轨迹规划进行了总结。
A particularly crooked place in a wellbore where the trajectory of the wellbore in three-dimensional space changes rapidly.
井眼中特别弯曲的地方，该处三维空间内井眼的轨迹变化很快。
Based on analysis positive and reversal motion of KLD-600 robot, planning of trajectory is analyzed in detail by the method of joint space and the basic model of the control program is created.
在对KLD- 600机器人的正逆运动学分析的基础上，采用关节空间法分析了轨迹规划，建立了控制程序基础模型。
A new approach for estimating the vector parameters of the target is presented, which is based on the extraction of the target motion trajectory in space.
提出了一种基于空间目标运动轨迹提取的矢量脱靶量参数估计新方法。
A new approach for estimating the vector miss distance parameters of the target is presented, which based on the extraction of the target motion trajectory in space.
提出一种基于目标空间运动轨迹提取的矢量脱靶量参数估计新方法。
With earth-moon transfer trajectory taken into account, this paper gives the deep space autonomous optical navigation algorithm based on the information of Earth-Moon.
论文的主要研究内容包括：针对奔月轨道段任务，给出了基于地月信息的自主光学导航方法。
Eventually it adopts cosine function for discrete interpolation in the inertial space trajectory planning.
最终以余弦函数对惯性空间的规划轨迹进行插值离散。
Trajectory tracking in free space and torque tracking in constrained space are realized, and reliability of mode switch and stability of system are achieved in transition.
这种方法可以使关节在自由空间和约束空间中分别实现良好的轨迹跟踪和力矩跟踪，在过渡过程中实现控制模式的可靠切换和系统的稳定过渡。
Under the usual coordinates, the paper conclude mathematical model in space motion and design project ballistic trajectory.
在常用坐标系下，推导了空间运动的数学模型，设计了方案飞行弹道。
Simulation results of the control system show it can drive the crane's joints to track the trajectory smoothly, but also can realize the anti-sway control of the load in the 3D space.
控制系统仿真结果表明该控制方法在控制起重机机械臂各关节平稳的跟踪给定轨迹的同时，能够实现吊重在三维空间的防摆控制。
If the trajectory is correct, the spacecraft will pass close to the moon and swings back into space to return to earth.
如果轨道正确，宇宙飞船会在月球附近通过，并飞回太空以返回地球。
In this model, the inputs were firing rates of neurons, and the outputs of model were hand trajectory in space.
该模型以运动过程中的脑皮层神经元集合信号为输入，将光标的空间运动轨迹作为输出。
The 3-d space robot collision-free trajectory planning problem, by means of geometry-graphics method in 2-d space, is resolved.
借鉴二维空间的几何图形法解决了三维空间机器人无碰撞轨迹规划问题。
The 3-d space robot collision-free trajectory planning problem, by means of geometry-graphics method in 2-d space, is resolved.
借鉴二维空间的几何图形法解决了三维空间机器人无碰撞轨迹规划问题。
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