relative coordinates

The Warship 's Collision Avoidance Algorithm Simulation Research Base on the Relative Coordinates System

基于相对坐标系下的舰艇避碰算法仿真研究

Mobile Robot Real-time Motion Planning Based on the Relative Coordinates in Dynamic and Unknown Environments

动态未知环境下基于相对坐标系的移动机器人实时运动规划

The determination of relative coordinates between stations by means of satellite Doppler translocation technique

利用卫星多普勒传递定位技术测定站间相对坐标

The coordinates x , y , and z are called the relative coordinates .

坐标x，y和z叫做相对坐标。

In addition , recently developed new ideas are also employed . These ideas include the use of Euler parameters , quasi-coordinates , and relative coordinates .

此外也采用了一些新的及近代发展的概念，诸如欧拉参数，准坐标及相对坐标等。

The joint relative coordinates and modal coordinates are used to describe the large displacements between contiguous bodies and small deformations of bodies .

用铰相对坐标和模态坐标分别描述物体的大位移运动和弹性变形。

During the impact , the impact joints are added into the cut joints , the equation of motion of the flexible multibody system with closed loops expressed in relative coordinates and modal coordinates is obtained .

在撞击过程中，在切割铰中增加撞击铰，导出了以铰坐标和柔性体模态坐标为系统广义坐标的闭环柔性多体系统在撞击阶段的动力学方程。

Motion planning is achieved by adjusting the robot behavior according to information from sensors based on the relative coordinates . The kinematics of the system is described by 4 × 4 homogeneous transformation matrices and the approach of assumed modes is used to describe the link deflection .

此方法基于相对坐标系，通过传感器信息实时调整机器人的行为来实现规划.其中，柔性机器人的运动学以4×4阶齐次变换矩阵为基础建立在相对坐标系中。

The method first models the image deformation caused by the tilted film as a projection model , and makes use of CT and MRI sequence image rulers , both vertical and horizontal , to rectify the deformation and calculate a few user defined marker 's relative coordinates ;

首先利用CT、MRI序列图像自身提供的水平和垂直标尺，通过本文所建立的投影模型对扫描过程中由于胶片倾斜等因素导致的图像变形进行矫正，求出自定义定位标记的相对坐标；

A new method of shipboard gun firing at shore is introduced in this paper , which is called firing at shore without an aiming point . Then it 's concept and principle is discussed by two models of computing target 's relative coordinates and converting our own observed positions .

介绍了一种新的舰炮射击方法&舰炮对岸无瞄准点射击概念、原理，建立了目标相对坐标计算模型、观测舰位坐标转换模型，解决了水面舰艇舰炮对岸上目标射击诸元计算问题。

In DMDS-DC , the local positioning regions ( LPR ) were established by an adaptive search algorithm , which not only kept that the relative coordinates of sensors can be transformed between neighbor LPRs , but also reduced the number of redundant common sensors in network .

DMDS-DC算法中，网络通过自适应搜索算法建立的局部定位区域（LPR）保证了相邻LPR间的坐标转换，有效地减少了网络中的冗余公共节点。

In the condition of double electrons , the coordinates of the electrons can be translated to mass center and relative coordinates firstly . Because of the electron-electron coulomb interaction , the analytical solution of Hamiltonian can not be achieved . So we regard the interaction as the perturbation .

而在双电子量子点中，首先把两个电子的坐标化成质心坐标和相对坐标，由于存在电子电子库伦相互作用，哈密顿量的解析解无法得到，所以把库伦相互作用作为微扰来处理。

It also established the robot ′ s kinematics and dynamics model jointly using its branch bars ′ relative motion coordinates , its movable platform ′ s absolute motion coordinates as generalized coordinates and the first category of the Lagrange equations .

以支链构件相对运动坐标和动平台绝对运动坐标作为广义坐标，结合拉格朗日第一类方程建立了3-RRRT型并联机器人的运动学与动力学模型。

All possible equilibrium states relative to the orbital coordinates have been considered . The stability of each state is analyzed by the use of the Liapunov 's direct method .

讨论其相对轨道坐标系的可能平衡状态，利用Liapuaov直接法分析各平衡状态的稳定性。

To avoid collision with the static and dynamic obstacles , we move the relative velocity away from the collisions field by adjusting the robot velocity value and direction real time dynamically in acceleration space based on relative coordinates .

此方法是基于相对坐标系，在加速度空间中，通过动态实时地调整机器人自身速度的大小和方向使其离开碰撞区域，即碰撞危险区域，达到与动、静态障碍物之间的避碰。